这是一个液态加工过程，煮练有时是在压力和煮沸条件下进行的。

This is an aqueous process, and is sometimes done under pressure at the boil.

youdao

这是一个液态加工过程，煮练有时是在压力和煮沸条件下进行的。

This is an aqueous process, and is sometimes done under pressure at the boil.

youdao