套衬的英文：
casing bushing

casing是什么意思：
n. 罩，管，套，盒
v. case的ing形式；把…装入箱内

It is a gone case.
那是一件无可挽回的事。

This is a verified case.
这是一个被核实的案例。

Double case: A type case combining upper and lower case.
双连字盘:盛载英文大写和小写字粒的字盘。

The other case which is excluded is the case of speculative demand.
另一个未谈的情况是投机的需要。

In no case will they look on passively.
他们决不会在一边看热闹。

bushing是什么意思：
n. 套管，轴衬

eccentric bushing
偏心衬垫;偏心轴衬

The trip bushed us.
旅行使我们筋疲力尽。

An outlaw living in the bush.
丛林土匪/居住在丛林中的罪犯

New shoots appeared on the bush.
灌木丛长出了新枝。

He has a bush of hair .
他的头发很蓬乱。