运动摩擦 meaning in English

dynamical friction
friction of motion
kinematic friction
kinetic friction

I s mie - nature turf cause less brush - burn and hay fever
德国保湿空心草能保证不产生运动摩擦伤害和热灼伤吗？
As well known the shock absorber is a key part of auto & motorcycle that is easy to be failure . the guide bushing & piston rod is also easy to fail mostly in the shock absorber . therefore it is very important practical and theoretical meaning to study friction & wear mechanism during this reciprocating movement
减振器是汽车、摩托车中一个关键的易损零部件，主要是内部导向套?活塞杆这对往复运动摩擦副的失效导致，因此研究此类型往复运动的摩擦磨损机理具有十分重要的实际意义和理论意义。
7 . no parts and components or complete power unit warranty will be delivered if gear shaft seize , cylinder scraping or moving friction pad are seriously worn out , resulting in damaging relevant parts or complete power unit , due to lack of oil insufficient engine oil or failure of engine oil or improper use of engine oil following engine instruction
因缺油机油量不足机油失效或未按发动机使用说明书规定牌号使用机油，导致咬轴抱轴拉缸或各运动摩擦付严重磨损，而损坏相关零部件或导致整机毁坏的，相关零部件或整机不给予保修。