一个人看的www片高清在线,国产精品a久久777777,宝贝胸罩脱了让我揉你的胸,久久精品免费一区二区喷潮

皮膚與場(chǎng)地表面的作用數(shù)據(jù)檢測(cè)儀功能：檢測(cè)皮膚與場(chǎng)地表面的作用數(shù)據(jù)
皮膚與場(chǎng)地表面的作用數(shù)據(jù)檢測(cè)儀符合標(biāo)準(zhǔn)：FIFA IRB
The Securisport is the device for realistically and variably examining friction characteristics between the shoe and the ground. The friction characteristic of a particular ground surface with the shoes a player is wearing is of great importance in most kinds of sport. Be it a pitch or a court, if a ground develops too little friction with the shoe, fast acceleration is no longer possible for the athlete and no individual progress will be achieved. However, if a ground provides too much friction, it can be a source of injuries. The contact between the skin and the ground is also noteworthy. Synthetic ground surfaces tend to cause burns if a player falls and his skin comes into contact with the ground.
What influences friction:
Compression
Velocity
Solidity
Humidity
Temperature
Sliding length
Because of all of those dependencies, it is important to determine friction characteristics under circumstances which reproduce the reality of the sport
Product information
The securisport is a system for determining friction characteristics of floor surfaces and shoe materials. The system is able to detect large variations of measurement conditions:
Forces up to 300N
Velocities up to 2.5 m/s
Any sliding length
Besides normal force, tangential force and velocity, securisport also measures the temperature of the sliding object - making it possible to examine possible skin burns in case a player falls to the ground. The system is operated via PC. The software package contains a user-friendly graphic surface. While measuring, the results are directly transmitted to a PC and graphically presented.
Applications: Football, Rugby
Standards: FIFA 08

上海樂傲試驗(yàn)儀器有限公司產(chǎn)品售后服務(wù)承諾：但凡從上海樂傲試驗(yàn)儀器有限公司購買的產(chǎn)品均可享受質(zhì)保一年服務(wù)；一年內(nèi)如有產(chǎn)品質(zhì)量問題包修包換包退，并可享受終身維護(hù)服務(wù)。