针对凡口铅锌矿狮岭顶板矿体和围岩极不稳固的牲，进行了机械化上向进路分层充填采矿工艺的试验研究。
To overcome the difficulty of unstability of orebody and surrounding rock, the test of flat-back cut-and-fill drift mining is carried out.
我们建立定制机械，用于安瓿、玻璃小瓶和注射器的输送、充填、封口和检测。
We build custom machinery used in the handling, filling, closing and inspection of ampoules, vials and syringes.
推荐使用机械化上向水平分层充填采矿法，提出了安全回采措施。
The upward horizontal cut and fill stoping method and the measures for safe mining are recommended.
应用推荐