polar lubricant meaning in English

极性润滑剂

Since the guides are usually made from materials having high-energy surfaces, wetting by polar lubricants usually is satisfactory .
由于导纱杆一般都是用具有高能表面的材料制备，一经极性润滑剂润滑，往往即达到饱和状态。
( 2 ) it is found that distilled water as lubricant can markedly reduce the accumulation of friction heat and temperature rise on the frictional surfaces of polymer . so the heat fatigue and adhesive wear decrease . moreover , a lubricating film forms on the interface between the counterpart and polymer when distilled water acts as polar lubricant
( 2 )润滑剂水的存在，可大幅度降低聚合物磨损表面的摩擦热积累及温升，从而减少了基体的热疲劳磨损和粘着磨损，同时，水作为一种极性润滑剂，在摩擦界面上能形成一层润滑膜，对摩擦表面起了一定的隔离作用。