friction是可数名词吗

friction 是不可数名词

英 [ ˈfrɪkʃ(ə)n ]

美 [ ˈfrɪkʃn ]

不和，分歧常用释义

释义

n.

不和，分歧；摩擦；摩擦力

变形

复数frictions

例句

1. The pistons are graphite-coated to reduce friction.

活塞表面涂有石墨以减少摩擦。

2. Sara sensed that there had been friction between her children.

萨拉感觉到她的孩子们中间出现了摩擦。

3. Friction between moving parts had caused the engine to overheat.

活动部件的摩擦使发动机过热。