Yes, a duplicate copy is enough.

是，你给我复印一份就行。

youdao

Otherwise, it's just storing in memory a duplicate copy of the POST data, which isn't needed.

否则，它仅在内存中存储POST数据的一个副本，而这没有必要。

youdao

This way, new hardware is introduced into the environment only as a duplicate copy of the other machines.

这样，可以将新硬件仅作为其他计算机的副本引入环境。

youdao