油润滑
oil lubrication
oil lubricating
oil lubricated
lubrication
lithium grease lubrication
oil lubri- cation
wire mill
oil-lubrication
自动干油润滑
Automatic grease lubrication
浸油润滑
Oil permeated lubrication
submerged lubrication
循环油润滑
circulating oil lubrication
湿集油润滑系统
wet sump lubricating system
智能干油润滑
intelligent grease lubrication
油润滑简图
oil lubrication schematic