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...
Easy operation and maintenance, reliable and lubricating system and protection unit of guideway.机床操作、维护方便.配置有可靠的没头润滑系统和导轨防护装置.Conveyance bearings and other hemp wipe part of of infusing into and lubricating fat.运输类的轴承及其它...