Absorbed in immediate interests mining out of order are main reasons of water inrush from gob area impoundment.

只顾眼前利益，无序开采，是发生采空区积水透水事故的重要原因。

youdao

Absorbed in immediate interests mining out of order are main reasons of water inrush from gob area impoundment.

只顾眼前利益，无序开采，是发生采空区积水透水事故的重要原因。

youdao