lubricating例句
Automotive - engine
lubricating systems are of the pressure - feed type.
汽车发动机的润滑系统采用压力供给式.
In the present chapter, the emphasis is mainly on
lubricating oils for internal combustion engines.
本章着重讨论用于内燃机的润滑油.
Complex calcium sulfonate grease is excellent multi - purpose
lubricating grease.
复合磺酸钙基润滑脂是优良的通用润滑脂.