可以有几个检查面，而且每一个可以具有不同厚度的留量。

There can be several check surfaces, and each can have a different thickness allowance.

youdao

一般批量，可以按照检验量和留样量在工序的开始、中间、结尾处取样。

General batch, sampling at the beginning, in the middle of, at the end of the.

youdao

一般批量，可以按照检验量和留样量在工序的开始、中间、结尾处取样。

General batch, sampling at the beginning, in the middle of, at the end of the.

youdao