mine water prevention
... 矿山安全 mine safety 矿山防水 mine water prevention 矿山废水 mine wastewater ...
基于24个网页-相关网页
矿山防水闸 water-proofing gate in mines
矿山防治水设计 waterproof system design in mines
“双层水位”开采方法是近几年提出的防水、防塌、安全、经济的矿山开采方法。
The "double elevation" is a waterproof, anti-collapsing, safe and economical means of mine development recently suggested.
youdao
应用推荐
模块上移
模块下移
不移动