How about the ACC pool
different brands, models and batches of ceramic tiles may have different quality, so we should conct on-site inspection. The selection of ceramic tiles depends not only on the quality, but also on the problems after sale, For example,
to teach you some simple ways to identify the quality of floor tiles: 1. Look at the origin (generally, the quality of tiles in Guangdong is better); 2; 2. Look at the flatness; 3. Check whether there are pores and particles in the appearance; 4. Look at the weight (a 800 large floor tile is 30 to 40 Jin, the heavier the weight, the higher the density of the floor tile, the higher the degree of porcelain, the better the quality in theory); 5. Listen to the sound; 6. Look at water absorption (all ceramic floor tiles should not absorb water); 7. Test skid resistance (in the presence of water)
In recent years, the technology configuration of new cars has increased significantly compared with that of previous years. In previous years, constant speed cruise was still the "golden baby" that some car companies were reluctant to give. In recent years, many car companies have generously equipped their new cars with adaptive cruise. However, unlike the rapid progress of car companies, many consumers' ideas still stay in previous years, It is considered that adaptive cruise is as useless as constant speed cruise. What about the actual use of adaptive cruise? Let's talk about this today
of course, we also need to say that adaptive cruise usually has better effect with lane keeping function, and the combination of the two is basically what we usually call L2 level driving assistance, but fortunately most of the current models are equipped with lane keeping function when they are equipped with adaptive cruise, If a car has only adaptive cruise but no lane keeping, you need to pay attention to it. After all, the two together can achieve 1 + 1 & gt; 2
feathers grow naturally on goose / ck wings, because they are not instrial procts. It can be said that there are no two identical feathers in the world. High quality ACC badminton must use uniform size, shape and specification feathers. Therefore, ACC has set up 6 screening programs (1 computer, 5 to manual), each program is divided into 3-9 levels, sorting out more than 2000 levels of feather classification, so as to ensure the consistency of 16 feathers on each ACC badminton< How to choose badminton
A: badminton with good quality and appropriate speed is very important for the smooth progress of the game and the interest of fitness. The quality of badminton can be judged from the following aspects:
(1) the appearance of badminton should be neat, the leather of the wrapped ball holder should be smooth, there should be no wrinkles, the feathers should be white and the angle of inserting pieces should be consistent
(2) the feather stick is slightly thick and straight, and the glue is even. It should be hard and elastic when holding it with hands, and it can't deform
(3) when trying to play badminton, the stability of its flight is better, the rotation forward does not shake, does not drift, and there should be no obvious difference in the speed of badminton in the same cylinder.
2. How much is the weight of badminton
A: the weight of the ball is about 5.0g, which is qualified
- people with playing experience know that when the light ball flies to half, it will fall quickly! It's really tasteless
(big manufacturers, such as Guangzhou Shuangyu factory, have very strict requirements on balls. They weigh every ball and ensure that the balls they proce are about 5.0g!)
3. What is the relationship between weight and speed
A: the weight of the ball is a major factor in determining the speed. In addition, there is the extent of feather opening, and the center of gravity of the ball is also crucial! So the weight of the ball doesn't necessarily equal the speed. Only after the test of the server can the speed of the ball be marked< How to choose badminton
A: in a regular badminton court, there are two small marks in the right service area near the service line after doubles, and the position between them is the badminton speed test area
when checking the ball, use your low hand to hit the ball forward and upward outside the end line, and the flight direction of the ball should be parallel to the sideline. The ball that meets the standard speed should fall in the area between 0.53 and 0.99 meters away from the outer edge of the opponent's end line (i.e. between two small marks)
when testing the speed of badminton, the server is used to test, and the appropriate speed (weight) is selected as the match ball after the test. Use the same speed (weight) ball in the same field< The quality of badminton can be observed from the following aspects:
1
2. The feathers are arranged at regular angles, and the trunk of the feathers is straight with a certain hardness
3. The plumage has good roundness and standard size
4. The feather stick is firmly bonded with the ball holder
5. The whole feather is coaxial with the ball holder
6. The ball holder is tight and not soft, with standard sphericity and less internal gluing
7. The overall weight of the ball is appropriate and the weight distribution is reasonable
naturally, compared with these standards, the common defects are as follows:
1. Irregular and uneven feathers
2. The feathers are arranged disorderly and the angles are not uniform. The main body of the feather is arc-shaped with poor hardness
3. The opening of feathers is not round, and there are large and small feathers
4. The feather stick is not firmly bonded and loose
5
6. The ball holder is soft and too much glue is applied inside
7. The weight of the ball is not suitable, some are light, some are heavy, and some screw in the ball holder
a good badminton player should feel good and not drop his hand. It's crisp, fast and steady, moderate deceleration. The flight is stable and does not shake. Quick and accurate turn back, good direction. The concrete feeling only has own experience. When buying the ball, throw it up about 1 meter to watch the ball fly and turn around. Try it if possible. If you run into a favorite ball, don't buy more cylinders, because it's not easy to catch up with this batch of quality. Generally, there are at most two balls in a barrel, which are slightly inferior in quality, but not deviated too much. If the ball is poor, the quality is also a problem
when money is good, things are good.
ACC is not the name of a brand, but a technology
all conditions control (ACC) is a kind of football shoe upper technology, which can make the vamp keep the same friction, touch and control to the football on the wet or dry field, and make the wearer behave the same in different environments. ACC technology comes from a special treatment in the development of vamp materials, so that players can keep a consistent touch of the ball in any weather conditions
This technology is commonly used in Nike shoes, so you can buy Nike shoes. The price varies from 600 to 3000 according to the style and material of the shoes
extended data:
no matter where the competition is held, weather conditions will more or less affect the competition
in London, for example, there are an average of 125 rainy days in a season, which makes it extremely difficult to catch and pass the ball, even for the best players. In wet weather conditions, ACC technology ensures constant friction between the shoe surface and the football, bringing players almost the same touch feeling as in dry conditions
when you touch the front end of the shoes with your hand, you will feel astringent and the friction will be increased obviously, and the middle and rear parts of the shoes feel as smooth as ordinary shoes. To put it bluntly, Nike ACC technology is a waterproof coating. In rainy days or wet fields, the waterproof coating on the front end can enhance the friction between the shoes and the ball
ACC seems to be a make-up brand in Japan.
ACC's skis have never been heard of yet.
the biggest brands of skis are atomic, Austria
Fischer, Austria
Volkl, Germany
elan, Slovenia (common in K90 competitions)
head, USA (competing with atomic)
Rossignol, which is what you call golden rooster, French
stocil, Switzerland
vist, Italy (luxury)
Nordica, Italy (this shoe is very suitable for Chinese)
dynastar, either the United States or France
Salomon, is the representative of Adidas's
Armada, snowboarding, the United States
K2, the United States
Blizard, the United States