Using new type material of strictress leakage stoppage for drill leaking of diamond drilling.

提高钻孔涌水量是低渗透砂岩型铀矿床地浸开采的重要内容。

youdao

Using new type material of strictress leakage stoppage for drill leaking of diamond drilling.

提高钻孔涌水量是低渗透砂岩型铀矿床地浸开采的重要内容。

youdao