liquid lubrication

基本解释

Therefore, the bearing does not require any cooling or liquid lubrication.
因此，这种轴承不需要任何冷却液和润滑油。
The lubrication of vacuum roll-element bearings include liquid lubrication and solid lubrication.
真空滚动轴承的润滑包括液体润滑和固体润滑。
Viscous damping is caused by such energy losses as occur in liquid lubrication between moving parts or in a liquid forced through a small opening by a piston, as in automobile shock absorbers.
粘滞阻尼既可因各运动部件间存在液体润滑作用造成的能量损失而引起，也可因活塞迫使液体穿过小孔造成的能量损失而引起，像汽车避震器那样。