2023-10-12
The Impact of Oral Materials on Language Proficiency
Introduction:
The use of oral materials in language learning has become increasingly popular in recent years.Oral materials refer to any form of audio or video content that is used to enhance language proficiency.They can include podcasts,videos,audio recordings,and even live conversations.This essay will explore the impact of oral materials on language proficiency and discuss the benefits and challenges associated with their use.
Benefits of Oral Materials:
One of the key benefits of using oral materials in language learning is the opportunity to expose learners to authentic speech.Traditional language learning materials often rely on scripted dialogues that are not representative of real-life conversations.Oral materials,on the other hand,present learners with a wide range of accents,speeds,and vocabulary that they would encounter in the real world.This exposure helps learners improve their listening skills and develop a better understanding of natural speech patterns.
In addition,oral materials provide learners with the opportunity to practice speaking.Many language learners struggle to find speaking partners or lack confidence in their speaking abilities.Oral materials allow learners to listen and mimic native speakers,helping them refine their pronunciation and intonation.This repetitive practice can greatly improve their speaking skills and boost their confidence when communicating in the language.
2023-10-12
Which Oral Materials Enhance Language Fluency?
Introduction:Language fluency is the ability to speak a language smoothly,accurately,and in a natural way.It is a crucial aspect of effective communication,enabling individuals to express themselves clearly and engage with others.Various oral materials have been proven to enhance language fluency by providing exposure to authentic language use,promoting interactive learning,and facilitating practice opportunities.This article aims to explore some of these oral materials and highlight their effectiveness in improving language fluency.
Conversational Practice:Engaging in conversations is a fundamental way to improve language fluency.It helps learners in developing familiarity with real-life language use,enhances their vocabulary,and improves their sentence structure.Conversational practice can be done with language partners,language exchange programs,or language learning apps that facilitate real-time conversations.These materials provide learners with opportunities to actively engage in dialogues and improve their fluency through continuous practice.
2023-09-11
Dental car drive company won the national patent technology this year increased by 600%
Dental car drive company won the national patent technology this year increased by 600%
As of October 2012,Qijiang Gear Transmission Co.,Ltd.had a total of 51 patented technologies and obtained a patent certificate granted by the State Intellectual Property Office.There are 45 utility model patents,2 invention patents and 4 exterior design patents,an increase of 629%from 2011.This year,it is expected that about 60 new patent applications will be filed on utility model patents and invention patents.
Yanfang Transmission Co.,Ltd.is a[national auto parts export base company"and a large-scale specialized production base for the production of heavy-duty automobile transmissions,splitters,power take-offs,and various automobile gears.In the digestion and absorption of advanced technologies introduced from abroad,we are moving toward high torque,multi-position,environmental protection,energy saving,and ease of operation.We have formed a spectrum of products with independent intellectual property rights.We have 8 types of transmissions and 5 types of transmissions.Power Co.,Ltd.and 150 kinds of proprietary technology for bridge gears.
2023-09-11
Plush toys also wear dentures?Island Country Wonderful Dental Hospital scares the child
Plush toys also wear dentures?Island Country Wonderful Dental Hospital scares the child
It must be said that many netizens have been scared by their parents when they were young:[If you eat too much sugar,your teeth will rot."Although this is just a reminder to children eating sweets,it`s really troublesome to have broken teeth.thing.Recently,in order to appease the child,a dental hospital in the island state actually installed dentures in the mouth of stuffed animals.Seeing such horrible dolls,will the children really not cry?
Plush toys also wear dentures?Island Country Wonderful Dental Hospital scares the child
Teeth have a very important role for humans.Every day we need teeth to help chew food,and white and clean teeth can add a lot to our overall image.However,once suffering from a dental disease,it is not like taking a cold and taking medicine to cure it.Some netizens said that it is easy to leave a psychological shadow in the process of seeing a dentist.The dental hospital in the island nation has definitely left a shadow on many children.Obviously,they are just ordinary plush toys,but after loading dentures has become a weird appearance.In the dental hospital,it's good to get a normal toy,just like a child.
In this regard,we will take a look at the views of netizens."It feels a little adorable.""For every one who has been to the hospital,you are reminded from time to time of the fear of dentist control.""Baby:I want to cry a bit.""At first a little scared,and later found it pretty"Figure 4 seems to have a voice:a little bitch,honest point.""A second change horror film.""Fortunately,
2023-07-27
Personal protective equipment use matters needing attention
First,the helmet
At the power construction site,the hard hats worn by the workers are mainly to protect the head from harm.It can protect people's head from injury or reduce the degree of head injury in the following situations.
(1)When a flying or falling object hits the head;
(2)When the operator falls from a height of 2m or more;
(3)When there is a possibility of electric shock on the head;
(4)When walking or working in a low position,the head may collide with a sharp,hard object.
Wear safety helmets to meet the standards,use to meet the requirements.If it is worn and used incorrectly,it will not provide sufficient protection.Generally should pay attention to the following matters:
(1)Before wearing a helmet,adjust the rear cap adjustment belt to the proper position according to your own head type,and then fasten the elastic strap inside the cap.The elasticity of the cushioning pad is regulated by the strap.The vertical distance between the top of the head of the person and the top of the cap body is generally between 25 and 50 mm,and at least not less than 32 mm.In this way,it can be ensured that when the impact is applied,the cap body has enough space for cushioning,and it is usually beneficial to the ventilation between the head and the cap body.
2023-07-27
Personal protective equipment with built-in heavy protective clothing
Built-in heavy protective clothing is one of the individual protective clothing.It mainly consists of boots,gloves,main clothing and head equipment.He can protect users from poisonous and harmful substances and dangerous chemicals,and is suitable for working in an environment with high concentrations of dangerous chemicals.
The boots with built-in heavy protective clothing are made of materials that are resistant to corrosion and sticking to protect the user's feet.Has a good safety protection factor.His head is equipped with an empty respirator and a built-in call system.The head is protected by a high-definition large-screen screen,which does not distort the visual effects of the helmet.The main material of the main wear is made of neoprene or butyl rubber or PVC.The internal and external vulcanization of joints at the joints provides excellent sealing performance and high mechanical strength.It can prevent chemicals from invading and has high tightness.zipper.
This article is a reprint of online media.It only represents the author's point of view.It has nothing to do with this site.If news articles and comments infringe your legal rights,please call us and we will handle it in a timely manner.
2023-07-20
Is it necessary to sell an imported dental implant up to 10,000 to 20,000?
Accidental injuries and ageing can damage your teeth and severely require your teeth. Compared with traditional dentures,dental implants are stronger and feel better to use,but the biggest drawback is that the price is too expensive. Currently,95%of dental implants in the domestic market are produced by foreign manufacturers such as Switzerland and Germany. However,such a situation is expected to change.
According to incomplete statistics,the number of domestic dental implants in 2011 was more than 110,000,and in 2014 it has grown to more than 800,000. Such rapid growth shows that the acceptance and recognition of dental implants in China is getting higher and higher.
On the other hand,according to the national epidemiological survey data,the incidence of dental caries in China is 68%,and the incidence of periodontal disease is 60%. The current amount of dental implants is far from meeting the demand,one of the biggest obstacles. It is expensive to import dental implants.
2023-07-20
Dental surgery to stop antibiotics or increase the risk of infective endocarditis
A recent study showed that a decision issued by the National Institute of Clinical Medicine in 2008 may prove to be a mistake.In 2008,the National Institute of Clinical Medicine of the United Kingdom recommended discontinuing the application of antibiotics to patients undergoing invasive dental treatment.
For every country,medical management policies are a complex issue,and a slight carelessness can have serious consequences.
A recent study showed that a decision issued by the National Institute of Clinical Medicine in 2008 may prove to be a mistake.In 2008,the National Institute for Clinical Excellence recommended discontinuing the administration of antibiotics to patients undergoing invasive dental treatment.
Previously,dentists generally prescribed appropriate amounts of antibiotics to reduce the risk of infective endocarditis.After several years,according to a survey of researchers,the amount of such prescriptions has been reduced by about 80%.However,in the UK,the number of cases of infection has increased by 35 per month.Although the researchers believe that the direct cause of this phenomenon may not necessarily be directly related to this measure of NICE,this figure is enough to attract the attention of NICE.
2023-07-11
What can you eat with oral ulcers?
The hot summer weather makes our body feel like a raging fire.The situation of getting angry happens repeatedly.Although it is not a serious disease,it often affects our work and study on weekdays.However,although they are all called"fire",the fire extinguishing methods are different because of different reasons.
Oral ulcer
Eat green beans and celery.In the past few days,Lee had a large piece of ulcers in his mouth.He could not eat it except for drinking porridge.He was in pain.In fact,oral ulcers and sore throat,like him,may be caused by too much warm food,such as litchi and longan.Chinese medicine believes that oral ulcers are on the"fire",to eat less warm food,eat more cold foods such as bitter gourd,green beans,celery and so on.
Constipation bloating
Less cold drink,more honey.The weather is too hot.Ms.Jiang eats two or three popsicles every day.As a result,the food does not eat as much as possible,but constipation is always bloating and it is also acne.This is actually due to overheating of stomach fire caused by too much sweets.At this point you should eat more fiber-rich vegetables,eat less sweets,especially sweet cold drinks.Honey can moisturize the intestines,detoxify,and drink plenty of honey water is very beneficial.In addition,you may wish to try a honey Juemyeong drink:use cassia seed and add water to boil,simmer for 30 minutes,transferred to honey for drinking.
2023-07-11
Healthy tooth foods improve the oral health
Teeth enable us to enjoy a wide variety of foods.Healthy teeth can enable us to chewing hard foods,meats,raw foods,and fruits without scruples.Good chewing can strengthen the strength of the gums and promote the secretion of saliva.,And they participate in the digestion process and play a sterilizing role on the teeth.In addition to genetic factors,the color and hardness of our teeth also depend on dental care and eating habits.
Apple Function:It can accelerate the secretion of saliva to remove bacteria and help keep the mouth moist.
Onion:It can kill a variety of bacteria,including Streptococcus mutans,which causes our tooth decay,and it is better if it is raw onions.
The role of celery:Contains crude fiber to help wipe off some of the food residue on the teeth,longer chewing can stimulate the secretion of saliva,balance the pH value in the mouth.
Use chocolate and sugarless chewing gum
In fact,cocoa contains tannic acid,fluorine and calcium phosphate.All three substances participate in the work of protecting the teeth.In"sugar-free"chewing gums,sucrose is replaced by a sweet polyol,but it does not lead to dental caries:xylitol acts as a bactericidal,helps to reduce plaque,and sorbitol(synthesis from glucose or fructose The sugar is used as an artificial sweetener.)So a 2.2 g icing gum contains only 3.8 calories.
Dark chocolate effect:Can inhibit the formation of plaque,but the premise is to choose dark chocolate content of more than 75%of the dark chocolate,or add too much sugar but damage the teeth.
Tea effect:Polyphenols in tea water have the effect of disinfection and sterilization.Chewing tea can also reduce gum bleeding.
2023-06-29
Warm milk grapefruit lemon 9 kinds of food to eat oral odor
Introduction:Durian,garlic,onion,mutton,etc.are all foods with special odors.After eating,it is unavoidable that people will not[get close to their teeth".The same is true after drunkenness,and it is often accused of"mouth drinking."How to get rid of this mouth odor due to food?You can use the same food to solve the problem.For example,eat the following foods:
9 kinds of food to eat mouth odor
Warm milk
After eating garlic,it will be unpleasant for a long time.Only need to drink a glass of milk at this time,garlic smell can be eliminated.This is because the protein in milk reacts with garlic and can effectively remove garlic.It should be noted that when drinking milk,it is best to sip slowly and let the milk stay in the mouth for a while,and it is better to drink warm milk.The effect will be better.
tea
After eating garlic,mutton and other foods,promptly gargle with strong tea or a handful of unleavened tea,put them into the mouth several times and slowly chews until the saliva softens the tea and then swallow it.This side can also get rid of the general bad breath.
Eat peanuts
After eating[heavy taste"food such as garlic,chewing a few cooked peanuts can eliminate bad breath.This is not only because peanuts contain more than 140 kinds of natural aromatic substances,but also because peanuts containβ-sitosterol,which can effectively inhibit the growth of oral bacteria and even have a certain anti-cancer effect.
2023-06-29
How to design a dental clinic?Dental clinic decoration points
How to design a dental clinic?Dental clinic decoration points
The design of the dental clinic is not an easy task,especially for dentists who don't have much experience in the design of the decoration.It is recommended that as a dental clinic operator,it is necessary to know some relevant necessary knowledge in advance.So how is the dental clinic decoration designed?The following decoration home decoration network Xiaobian will bring you the main points of dental clinic decoration,I hope to be helpful to everyone.
How to design a dental clinic?
Dental clinic decoration points 1,the overall layout of the space:
In the overall layout of the dental clinic space,it is necessary to be small and big.The space area is functionally separated according to ergonomic requirements.The entire dental clinic has shown the principle of space allocation in the division of space:
(1)Leave a waiting area close to the surrounding wall to provide rest for the patient;
(2)The shape of the three-sided solid partition wall is not grounded to increase the depth and depth of the wall space;
(3)The mirrored wall is used to echo the glass curtain wall of the original building to increase the visual depth of the space;
(4)The partition display method without the cabinet bottom plate and the glass curtain wall jointly produce a transparent effect.Achieve completeness of spatial functionality.Not only does the patient and the doctor enjoy an independent and complete activity space,but the two are separated and do not interfere with each other.Secondly,the design of the dental clinic made a serious scrutiny on the artisticization of the decorative
2023-06-13
Dental caries testing center reviewed by National Laboratory CNAS certification
An expert review team from the China National Laboratory Certification Center recently conducted a periodic review and review of the National Laboratory CNAS certification on the Qijiang Gear Co.,Ltd.testing center.After reviewing by experts of the assessment team,it was considered that the system documents of the Dental Crushing Inspection Center met the requirements of the accreditation criteria and related instructions.The system operation was in a controlled state,the laboratory testing and measurement quality system was effective,and the product testing and metering control complied with the mandatory certification.Requirements,review by on-site supervision.
The members of the expert audit team examined the quality manuals,program documents,management regulations,relevant laws and regulations of the Handan Company's inspection center,and whether they were able to ensure that the mass-produced products were tested and passed on measurement standards.This audit passed ten major technical capability verifications,conducted field tests of six major items and two small items,and reviewed the rectifications of non-conformities reviewed by the previous expert.
2023-06-13
Dental veneer smiles more confident
Tooth veneer whitening smile more confident
Veneer whitening is a layer of veneer on the surface of the tooth,which blocks the discolored teeth.The effect of the whitening of the veneer is obvious,and it becomes very white immediately after being attached,which is very convenient.Nowadays,the color of the veneer whitening teeth has become more and more,and the appearance is more and more realistic and very popular.
Nowadays,the popular whitening tooth veneers can be divided into resin veneers and porcelain veneers.The resin veneer is a resin attached to the surface of the tooth after grinding a part of the tooth,which can maintain the shape of the tooth and the original.Porcelain veneers combine the advantages of porcelain teeth and resin veneers,which are both beautiful and realistic.Porcelain veneer whitening needs to be made according to the model,and then fixed on the tooth surface,the price is more expensive,and the retention time of the resin is longer.
Veneer whitening suitable for people:tetracycline teeth,drug-induced discolored teeth and hereditary yellow teeth.
2023-04-11
What protective equipment is necessary when welding work?
I.Safety requirements for protective equipment for the eyes and head
(1)To prevent the hazards of arc welding and spark scalding,a light-shielded lens that meets the operating conditions shall be selected in accordance with the requirements of GB 3609.1"Welding goggles and masks".
(2)There are two types of masks for welders,hand-held and head-mounted.The shells of the mask and helmet should be made of non-flammable or non-flammable insulating materials that are not irritating to the skin.The mask should cover the face and ears.Solid,no light leakage.
(3)Head-mounted masks for various arc welding or ascending welding operations,and the weight should not exceed 560 g.
(4)Auxiliary welders should wear masks and protective glasses that are suitable for shading performance according to the working conditions.
(5)Gas welding and gas cutting operations shall be based on the thickness of welding and cutting workpiece plates,and corresponding protective eyeglass lenses shall be selected.
(6)Welding,cutting preparation,cleaning work,such as grinding welds,welding slag,etc.,should use the slag-resistant glasses that are not easily broken into pieces.
Second,the safety requirements of welders overalls
(1)Welders'overalls should be selected according to the characteristics of welding and cutting work.
(2)Cotton canvas overalls are widely used for general welding and cutting work.The color of work clothes is white.
(3)Gas shielded welding Under the action of ultraviolet rays,there are working clothes made of fabrics such as coarse wool or leather when producing gases such as ozone,so as to prevent the welder from being burned or hav
2023-04-11
Recommended protective equipment during typhoon
Typhoon is a tropical cyclone.The so-called tropical cyclone refers to the rapid rotation of the low-pressure vortex that occurs in the tropical or sub-tropical oceans,often accompanied by storms,storms,and storm surges.Typhoon is a kind of disaster that often occurs in coastal areas of China,especially in Guangdong,Fujian,Zhejiang,Jiangsu,and Shanghai.The occurrence of typhoons is obviously seasonal.
In the typhoon,there is a possibility of water cuts,power cuts,and floods.Therefore,before the advent of a typhoon,it is often necessary to prepare a few items to be prepared from time to time.
Related items
Food,drinking water,commonly used drugs,candles,flashlights,radios,raincoats,lifebuoys,baffles,small pumps,etc.
2023-03-11
What are the dental clinic decoration designs?Clinic decoration precautions
There are so many dental clinics on the roadside,and the decoration outside can't feel the grade.The interior decoration of the dental clinic varies from place to place,and the decoration of different grades of dental clinics varies,depending on the location of the clinic.The main requirement is to highlight the expertise of dental clinics.Then let Xiaobian take everyone to look at the relevant content of the relevant content of the dental clinic decoration design.
First,waiting room dental clinic decoration
1.Service Desk:Mainly responsible for reception,consultation,medical guidance,call number,medical record management,and fees.
2.Layout:There are sofas,tea,flowers or bonsai;books,pictorials,abstracts,and oral health education materials for patients to read;film and television equipment can play oral health education knowledge,or scenery films,comedy films,etc.
3.There should be a restroom around the waiting room.If necessary,a dressing table should be set up for the patient to wash their hands or make up.
2023-03-11
Plush toys are also equipped with dentures?Island State Kiwi Dental Hospital scares children
Presumably,many netizens were scared by their parents when they were young:"If you eat more sugar,your teeth will rot."Although this is just a reminder to the children to eat less sweets,it is really troublesome if the teeth are broken.thing.Recently,a dental hospital in the island country has installed dentures in the mouth of a plush toy in order to appease the children who are treated.Seeing such a horrible doll,can the children really not cry a lot?
Plush toys are also equipped with dentures?Island State Kiwi Dental Hospital scares children
Teeth play a very important role for humans.We need teeth to help chew food every day,and white and neat teeth can add a lot to our overall image.However,once suffering from dental disease,it is not cured like a cold.Some netizens said that it is easy to leave a psychological shadow in the process of seeing a dentist.Recently,this dental hospital in the island country has certainly left a shadow on many children.Obviously,they are just ordinary plush toys,but they become eccentric after being fitted with dentures.In the dental hospital,you can take a normal toy and a child.What kind of teeth are there!
2023-02-16
Understand the type of valve
From the application point of view of distribution:how many types of valves in our country?
(1)urban construction valves:
Urban Construction Department with the general use of low-pressure valve,is currently environmentally friendly and energy-saving direction.Environment-friendly plastic valve,balance valve and the middle of the butterfly valve,metal butterfly valve is gradually replacing the low pressure iron gate.Domestic urban construction needs more valves for the balance valve,soft seal gate valve,butterfly valve.
(2)urban heating with the valve:
Urban heat generation system,the need to use a large number of metal seal butterfly valve,horizontal balance valve and direct buried ball valve,because of such valves to solve the pipeline vertical and horizontal hydraulic imbalance problem,to energy saving,generation heat balance purposes.
(3)Environmental protection valve:
In the domestic environmental protection system,the water supply system mainly needs the midline butterfly valve,soft seal gate valve,ball valve and exhaust valve(used to eliminate the air in the pipeline).Sewage treatment system is mainly required to use soft seal gate valve,butterfly valve.
2023-02-16
BRY air-cooled centrifugal heat pump impeller size of how to determine
In BRY air-cooled centrifugal heat transfer oil pump design,generally need to give the design parameters:flow Q,head H,speed N,NPSHr NPSHr and efficiency.According to the above parameters,the structural scheme of the centrifugal tip can be initially determined and the specific rotational speed Ns of the impeller can be calculated.Then,some empirical data(formulas)are used to determine the main geometric dimensions of the impeller.
In BRY air-cooled centrifugal heat transfer oil pump and Francis pump impeller oil flow design,assuming that the flow inside the impeller is axisymmetric flow,the velocity at any point in the flow field can be decomposed into axial(including the axis of the impeller axis)Of the axial velocity component and the circumferential velocity component.The distribution of the axial velocity component is determined by the axial projection of the impeller runner and the boundary conditions at the inlet of the impeller.The distribution of the circumferential velocity is determined by the distribution of the axial velocity component and the blade placement angle.Therefore,the first step in the design of the impeller is to determine the axial velocity and circumferential velocity.BRY air cooled centrifugal heat pump impeller size to determine the following three methods:
2022-11-23
What is the use of dental floss?
Do you know how to use dental floss?When the floss is used,the gums do not feel pain.If you feel the gums are painful at the appropriate strength,and even the amount of bleeding is relatively high(slight oozing is normal),it is necessary to pay attention to whether it is a precursor to periodontal disease!It is best to go to the dentist for an examination as soon as possible.There is only a thin line of floss,but the effect is much worse!Many people think that it is enough to use a toothbrush to clean teeth.In fact,this is not enough,because the toothbrush can be cleaned to a large area.Tooth sew.You must rely on dental floss to help!Don't look at the floss is just a thin line.It is also a skill and skill in use.Let's let flossing people teach you how to use floss.
What is the use of dental floss?
How to use dental floss
When the floss is used,the gums do not feel pain.If you feel the gums are painful at the appropriate strength,and even the amount of bleeding is relatively high(slight oozing is normal),it is necessary to pay attention to whether it is a precursor to periodontal disease!It is best to go to the dentist for an examination as soon as possible.
2022-11-23
With this one,the valve no longer leak leakage
Valve sealing performance requirements,to prevent leakage point of departure.According to the different parts of the leak and the degree of leakage caused by different valves,therefore,need to propose different leak-proof measures.First,the principle of valve sealing
Sealing is to prevent leakage,then the principle of valve sealing is to prevent leakage from the study.Leakage caused by two main factors,one is the most important factor affecting the sealing performance,that is,there is a gap between the sealing pair,and the other is the pressure difference between the two sides of the sealing pair.Valve sealing principle is also from the liquid tightness,gas tightness,leakage of the sealing principle of the valve and the valve seal from four aspects to analyze.
1,liquid tightness
Liquid tightness is achieved by the viscosity and surface tension of the liquid.When the leaking capillary is filled with gas,the surface tension may repel the liquid or introduce the liquid into the capillary.This creates a tangent angle.When the tangent angle is less than 90°,liquid will be injected into the capillary,which will leak.The reason for the leak is the different nature of the media.
2022-10-31
Liposuction,swelling,pain,oral ulcer diet
"Get angry"is a special term for traditional Chinese medicine.If there is dry throat pain,red eyes,blistering nasal cavity,dry tongue pain,and bad mouth angle,nosebleed,toothache and other symptoms,Chinese medicine is considered to be"get angry."
How does"fire"come about?The first is the direct[hot"symptom caused by the[hot evil"in the natural world;the first is the[fire"that is invisible in the body and can drive vital functions.
People are prone to eye irritation and astringent pain,or swollen throat,swollen gums,painful sores,and erosion of the tongue."Large"can be adjusted by diet,and"therapeutic"has a unique effect.
drink lotus soup to the heart of fire
Symptoms:There are two kinds of virtual reality.The virtual fire shows low fever,night sweats,upset,and dry mouth.The real fire shows repeated oral ulcers,dry mouth,short urine,and irritability.
2022-10-31
Pay attention to the tightness of oral liquid aluminum lid packing
Packaging is a part of the product.It is a means for the product to be put on the market.It is a good package.Under the premise of satisfying customers'use,it can add beauty to the appearance and stimulate the desire of the customer to purchase.Foreign countries attach great importance to the packaging of products,and some products even exceed the value of the product itself.Many enterprises in China do not attach importance to product packaging,resulting in product prices that do not go up and exports are difficult.Since the cost of not paying attention to packaging is too great,we hope it will be a lesson.
Secondly,the glass bottle and the plastic bottle cap should be tightly tightened.Glass bottle oral liquid aluminum cover and plastic bottle cover both of the hardness,strength is not the same,the torque is too small sealing effect is poor,and the torque is too large may produce a tripping sealing effect is also bad,only the moment is moderate to ensure the sealing effect.Conditional.Special tool seals with torque can be designed and manufactured;unconditionally,the same person is fully tightened.
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