We know in life that friction takes kinetic energy out.
我们知道在生活中，摩擦力抵消动能。
The frictional force remains constant, dependent on the friction, the kinetic friction coefficient, is always the same...
摩擦力不守恒，它取决于摩擦力，动能摩擦系数，一直是相同的。
I'm rotating it, and you see that friction is taking out kinetic energy and it's converting it to heat.
旋转它，然后看，摩擦力抵消动能，转化成热能。
Transport vehicles braking effect is generated by friction braking, the vehicle's kinetic energy into useless heat.
运输车辆刹车是通过磨擦作用产生制动力，将车辆的动能转化为无用的热能。
We make a distinction between static friction coefficients and kinetic.
摩擦系数也分为，“静摩擦“和“动摩擦“系数。
Typically, the staticfriction coefficient is higher than the kinetic friction coefficient.
静摩擦系数典型地高于动摩擦系数。
Thetransition between static and kinetic friction is defined by the values given at intermediate slip rates.
静动摩擦系数间的转换定义为给出的中间滑移率的值。
It is pointed out that translational kinetic energy and rotational kinetic energy mutually transferred by sliding friction force, but it only has positive acting.
讨论滑动摩擦力作功，说明了滑动摩擦力可以使刚体的平动动能和转动动能之间相互转换，但总是作负功。
Thetransition between static and kinetic friction is defined by the values given at intermediate slip rates.
在默认模型里，定义摩擦系数为等效滑移率和接触压力的函数。
The three characteristics of PTFE filled with p-oxybenzoyl homopolyester are introduced, i. e. the biggest maximum PV value, the lest abrasion and outstanding kinetic friction.
并介绍聚苯酯填充聚四氟乙烯的三大特点：极大的权限PV值、极低的磨耗量和不损伤对磨偶件。
Alternatively, youcan specify the static and kinetic friction coefficients directly.
同样，你可以直接定义静和动摩擦系数。
Alternatively, youcan specify the static and kinetic friction coefficients directly.
同样，你可以直接定义静和动摩擦系数。
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