The pistons are graphite coated to reduce friction.活塞上涂了一层石墨以减小摩擦。

The overall efficiency of the machine is higher because there is less friction.该机器的总体效率较高, 因为摩擦较小。

the friction of his leg against hers他和她的腿之间的擦蹭

The friction between us was becoming evident.我们之间的冲突变得明显了。

Sara sensed that there had been friction between her children.萨拉感觉到她的孩子之间一直存在着矛盾。

The plan is likely only to aggravate ethnic frictions.这计划很可能只会使种族摩擦恶化。

These decisions can cause friction.这些决定会引发矛盾。