lubricationn.

英 ,luːbrɪ'keɪʃən | 美 ,lʊbrɪ'keʃən

中文n. 润滑；润滑作用

词根词源

lubrication (n.)1640s, "act of lubricating," noun of action from lubricate (v.). Earlier were lubifraction (1540s).

关键词

lubrication