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...
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...