一般给锅炉加水要经过三个加热阶段，即：给水被加热成饱和水；

General to add water to go through three stages of heating boiler, i. e.

youdao

一般给锅炉加水要经过三个加热阶段，即：给水被加热成饱和水；

General to add water to go through three stages of heating boiler, i. e.

youdao