動詞 lubricate:

1. have lubricating properties
   同義詞：lubricate
2. apply a lubricant to
   同義詞：lubricate, lube
3. make slippery or smooth through the application of a lubricant
   同義詞：lubricate

形容詞 lubricated:

1. smeared with oil or grease to reduce friction
   同義詞：greased

1. The dead center, being a stationary bearing point, must be lubricated.
   由于是固定的支承點，死頂尖必須潤滑。
2. As the diamond tip of the drill revolves, it is lubricated by mud.
   在鉆機的金剛鉆頭旋轉(zhuǎn)的時候，泥漿便進(jìn)行了潤滑。