oil-lubricated bearing

• 油润滑轴承

oil-lubricated bearing的用法和样例：

例句

1. The purpose of lubrication bearings is to reduce the friction.
   润滑轴承是为了减少摩擦。
2. It would cause great trouble not to lubricate the bearing immediately.
   不立即润滑轴承就会引起很大的故障。