1. Is white charcoal charcoal?

Carbon is a collective name for charcoal products. It usually includes four categories: white charcoal, black charcoal, activated carbon, and mechanism charcoal. White charcoal is also a type of charcoal. As early as Qin and Han, white charcoal had appeared in China.The fuel is used for smelting iron weapons, which can melt the fuel that can melt steel.

2. What is the difference between white charcoal and ordinary charcoal

White charcoal is also called white charcoal, which belongs to charcoal products, but compared with ordinary charcoal, white charcoal is different:

1. Different carbonized temperature

White charcoal is a high -temperature charcoal. The carbon with a carbonized temperature of 700 C is called high -temperature charcoal, while the carbonization temperature of white charcoal is as high as 2000 C.

2. Burning temperature is different

When the white charcoal is burning, the temperature can reach about 1000 C, which is much higher than the 500 C of ordinary charcoal.

3. Different combustion effects

After high -temperature refined white charcoal, it has the combustion effect of smoke -free and fire, and ordinary charcoal dripping oil will fire.

4. Different sources of raw materials

Ordinary charcoal can be made with any wooden raw materials, and the mechanism can even use agricultural and forestry waste; white charcoal needs to use hard wood.

5. Different market prices

The price of white charcoal is much more expensive than ordinary charcoal. Ordinary charcoal is generally one yuan to a few dollars a pound, while the price of white charcoal is about 2-10 yuan per catty, and the expensive is even more than ten yuan per catty.

What is white charcoal?

White charcoal is a technology of firing charcoal. In addition to the different firing method and ordinary charcoal, the differences in raw materials will also affect the quality of white charcoal. Not all wood can be fired white charcoal.

Generally speaking, the raw materials of white carbon must have at least 0.8 wood. Ordinary fruit wood and birch can also be fired.If you want to burn high -quality white charcoal, you still need to use the tree of Tochigi. Commonly used such as Wugang Masa, Qinggang , and other ingredients such as .

The role of exercise knee pads is vigilant. Several kinds of sports are easy to "accidentally hurt" knees

The role of sports knee pads

The knee joint is the center of the upper and lower leg bones. There are half -moon boards on both ends, and there is a Bone in the back. The Bone is stretched by two muscles. It is very casual before the legs of the legs are suspended.The influence is not violently activated, so the Bone can move in a small category in ordinary categories in the knee.Because the mountaineering activity puts too much pressure on the knee, coupled with the violent activities in the mountaineering, it is very casual to separate the Bone to separate the original parts, causing the disease of the knee joint.With the knee pads, the Bone can flow in an absolute fluctuation position to ensure that it is not damaged casually.The above is the mild measure of the knee pads when the knee joint is not injured. After the knee joint is injured, the use of severe braking knee pads can reduce the bending of the knee, keep from the thighs to the calf on a straight line to reduce the knee joint.Bending, so that the knee joint no longer aggravate the condition.

The fragile knee is the most vulnerable to injury

Human knee joints are a large load -bearing joint with a large range of activity, and they almost carry the weight of the whole body.Only the moment we lie down, the knee is easy.In addition, it is under pressure every moment.When standing and walking, the weight of the knee is 1 to 2 times the weight, 3 to 4 times when going upstairs, 4 times when Running, 6 times when playing, and 8 times when squatting and Kneeling.

The knee is also the most often injured joint of sportsmen.According to a report from the American Association of sports medicine, about 3 million people in the United States strain, contounded or sprained their knees each year, and about half of them were caused by sports.The report also pointed out that those who participate in tennis, football and Ski sports are the most vulnerable to their knees.When playing tennis, it is necessary to suddenly twist, stop and start, especially the serve. The quadriceps in the knee need to be pushed up strongly, so it is easy to cause knee damage.tennis player Nadal's knees have always been plagued by tenditis. Medical experts believe that this is related to high -intensity training and competition in the hard ground field.

Running jumping and injured knee knee pads

When Running, jumping, and voting, you should pay special attention to protecting your knees.Especially people over 40 or 50 years old have a decrease in balance, and their muscle strength is not strong. The more severe exercise such as Running, jumping, and casting requires a lot of knee movements, such as turning jumps in basketball, jumping in urgency, and not a little bit.Be careful and may be injured.Light causes injuries to the ligament directly above the knee and the outer tibial tibial bundle. This is a knee trauma. It can gradually recover through rest and applied anti -inflammatory drugs; severe may cause tears and half -moon plate damage to the front and rear ligaments. This must be necessary.Go to the Hospital for treatment and it is difficult to recover.

Although some exercise is likely to cause knee damage, it cannot be scrapped due to choking.On the one hand, self -protection should be strengthened. For those who do not exercise frequently, they should be step by step and pay attention to strength.When performing a long period of exercise, wear the knee -nursing.On the other hand, strengthen the leg muscles through exercise.Such as swimming, bicycles or rowing, these sports are good for health and do not compress their knees.swimming has the least weight to the knee joint, and is the most ideal way to exercise the knee joint injury.In the United States, the helving in water is the most popular sport. The reason is that it greatly reduces the compression of the knee weight and reduce the chance of knee injury.

Strengthen the exercise of muscles around the knee

In addition to choosing a suitable exercise method, training to strengthen muscle strength around the knee can also prevent knee injury.Because muscle is an important support structure. The stronger the muscles, the stronger the joints, and the knee can be more stressful.In addition, increasing hip muscle strength can reduce the chance of knee injury.If the hip muscles are not developed, the body cannot be guaranteed to return to the correct position when doing action, and the knee joint is also vulnerable to injury.

Here are a few movements that exercise the muscles around the knee:

exercise the four -head muscle, the muscles in front of the thigh.Sit on the floor and straighten your knees forward; put a towel roll under the lower knee depression; tighten the knee for at least 30 seconds, and then relax.Repeat this tight and relaxing process 25 times.

Except for the tetraous muscle, do not ignore the back tendon of the back of the thigh. The muscles of these two parts maintain a balance in order to strengthen the knee.Lie lying down, touch the ground, tie heavy objects on the ankle, bend your knees, slowly lift your calves away from the ground, and then slowly drop it.Repeat the three groups in this way, and the number of times in each group is determined by individuals (also depends on the weight of heavy objects).

Lift your legs and sit down against the wall, and put a pillow at the concave at the back (sitting against the wall and sitting can make the leg muscles easily lift, and this way of leg lifting will not cause back pain).After sitting, shrink the knees as mentioned above, from 1 to 5; then lift your feet away from the ground, hang it, count from 1 to 5; then put your feet back to the ground, relax, from 1 to 5.Do three groups in this way and lift 10 times in each group.

Warm reminder: Remember to repeat each step slowly and steadily.If the exercise increases pain and discomfort, practice should be stopped.

Knee padding method

Please place it in a dry and ventilated place, and pay attention to moisture -proof.

It is not advisable to expose in the sun.

When using, please pay attention to cleaning

Forbidden to soak in water for a long time, soak the fluff surface and rub it gently. Wipe it gently with water with water.

Avoid ironing

1. Do you want to buy ski gloves a little bigger?

The size selection of ski gloves should be determined according to the size of the individual, rather than simply buying larger or smaller.If the gloves are too large, the fingers may shake in the gloves, affecting the operation and warmth effect; if the gloves are too small, it may cause the hand to feel restraint and discomfort and affect the blood circulation of the hand.

Therefore, when buying ski gloves, it is recommended to measure your hand size first, and then select the appropriate glove size according to the measurement results.If the hand shape is small, you can choose a small one -size glove; if the hand shape is large, you can choose a large one -size glove.When trying to penetrate gloves, you should pay attention to check whether your fingers can exercise flexibly and whether gloves can completely wrap the hands.

In short, the appropriate size is one of the key factors to ensure the normal use of ski gloves. Therefore, you need to choose carefully when buying to ensure that the gloves are comfortable and safe.

2. What should I do if I buy skiing gloves?

If ski gloves are buying big, you can take the following methods to solve:

1. Install the lining:You can install a layer of posted cotton elastic lining in the glove, which not only increases the warmth, but also prevents his fingers from shaking in the glove.

2. Use beam rope:If the gloves are too large, you can use beam rope or rubber tendons to tie your wrists to prevent cold wind from entering from his wrist.

3. Buy thin -type warm inner lining:Some gloves are designed with a thin and warm lining, which can be selected according to your own hand shape.

4. Return and exchange:If you find that the gloves are too large after buying, you can negotiate with the seller.

5. Gift to others:If the gloves are too large to use, you can consider the presence to the person you need.

In short, the appropriate size is one of the key factors to ensure the normal use of ski gloves. Therefore, you need to choose carefully when buying to ensure that the gloves are comfortable and safe.If the gloves are too large, you can try the above methods for processing.

1. How to throw out the Fishing Net

How do I throw out the fishing nets?Sprinkle out with your hands to make the net mouth down, use the pendant to quickly bring the net body into the water, and slowly collect it with the rope connected to the net edge, so that the fish enters the net pocket and pull out the water surface.Two ways of method:

1. Two Sattafa

Holding the fishing nets and one -third of the mesh part of the Fishing Net in the left hand, Hanging the net in the right hand on the thumb (this is the most important net with the thumb to catch the net with the net to open the mouth)To live the remaining mesh part, keep a distance of easy movement. The left side of the body is sprinkled with the right hand on the left side of the body.Practice a few more times and slowly learn.

2. Turnover method

Raise the net, lift the leftmost part, hang on the left elbow about 50 cm away from the mouth, hold 1/3 of the exit of the left hand, hold the right hand together with the mule, hold 1/3 a little bit, and send the right hand in turn when the net is scattered.Left elbow and left hand.It is characterized by fast, easy to dirt, suitable for shallow water, suitable for beginners.

Note: After the net is thrown out, you must hold the rope, otherwise the rope will not be closed.

2. How long does the Fishing Net collect the net

Learn how to throw out the fishing nets. Let's take a look at how long the fishing nets have received the net!

Generally, fishing nets are released in the evening and collected the next morning.This time period is the most suitable. The fish and creatures in the water will come out for food, which is conducive to the harvest of fishing nets.

1. What is Paddle board coaching qualification certificate

The Paddle board coach qualification certificate is the Paddle board coach certificate. It is a legal proof of authorized holders to coach the Paddle board. The coaches holding this certificate can be the coach work in various Paddle board movements to teach the skills and skills of Paddle boards andKnowledge.

Generally, the Paddle board coaching permit is issued by the Paddle board association or Paddle board coach training institution. The holder must pass professional theoretical learning and practical assessment, and has a high level of sports skills and teaching Levels.

2. What are the use of Paddle board coach qualification certificate

The Paddle board coach certificate generally refers to a vocational qualification certificate issued by the Paddle board coach training institution recognized by the State General Administration of Sport of China.

1. Legal to engage in Paddle board coach work:Those who hold the Paddle board coaching permit can legally engage in the work of Paddle board in China, which is also one of the basic conditions for a Paddle board coach.

2. Improve employment competitiveness:With the Paddle board coaching permit, it can prove that the certificate holders have professional knowledge and skills, and can also improve the competitiveness in the job search process.

3. Improve teaching level:The Paddle board coaching permit is a certificate issued by the training institution recognized by the State General Administration of sports. The person who holds the certificate has a high level of teaching level and professionalism, which can better provide teaching services for students.

4. Participate in domestic and foreign competitions:Those who hold the Paddle board coaching permit can participate in various domestic and foreign Paddle board competitions and participate in international competitions on behalf of the Chinese team. This is also one of the goals pursued by many paddle coaches.

In summary, the role of the Paddle board coaching permit is very important, which can promote the development of Paddle board teaching and improve the overall level of the industry.At the same time, it can also help holders to better develop their careers in the workplace.

3. How to test the Paddle board coaching permit

Today, the Paddle board movement is becoming more and more popular, with one of the necessary conditions for coaches to expand career development and improve the quality of teaching in the coaches. The specific steps are as follows: the specific steps are as follows:

1. Obtain a lifekeeper certificate

Before obtaining the paddle coach certificate, you need to obtain a lifekeeper certificate.This is because paddle coaches need to have life -saving skills to ensure the safety of students.

2. Participate in the training course of Paddle board

The coach of the Paddle board needs to participate in the training course of Paddle board coach to learn the knowledge of Paddle board skills, teaching methods, and safety knowledge.

3. Complete the training course examination

After completing the training course, you need to take the exam to prove that they have mastered the necessary knowledge and skills.

4. Complete the internship

After passing the exam, the coach of the Paddle board needs to complete a certain internship time to obtain practical experience and teaching skills.

5. Obtain the coach certificate of Paddle board

After completing the internship, the Paddle board coach can apply for the Paddle board coach certificate to prove that they already have a necessary condition for becoming a paddle coach.