英语语法分析

countersink

v. 打埋头孔与……；把（螺丝钉等）钻入埋头孔

n. 用于锪削的工具

第三人称单数 countersinks

现在分词 countersinking

过去式 countersunk或countersank

过去分词 countersunk或countersank

例句

To make a countersink on or in.

在…上或…内造埋头孔。

To drive(a screw or bolt) into a countersink.

螺栓上的扳手。

The stress in the implants without countersink may distribut more evenly than that in those with countersink .

无防沉装置的设计较有防沉装置者应力分布更均匀。