frictionizev.擦frictionn.摩擦；摩擦力；分歧frictional dissipation摩擦耗散frictionbreak standard摩擦断离式安全支柱friction slip coupling摩擦滑动式离合器frictional performance摩擦性能frictional attenuation摩擦衰减frictions damper mount摩擦阻尼器Frictional constraints摩擦约束friction pressure loss摩擦压力损失Friction means heat.摩擦起热friction damping force摩擦阻尼力