1.
Study on identification of the aged coal mine and coal mine lifecycle system simulation
衰老矿井识别及矿井生命周期仿真研究
2.
The present difficulties and developing countermeasures of old mines;
浅述衰老矿井的现实困难与发展对策
3.
Resolution to Corner Coal Exploitation Scheme of Aged Coal Mine
衰老矿井边角呆滞煤开采方案设计研究
4.
More than60 pits in old mining areas are being extended.
老矿区的六十多个矿井正在扩建。
5.
Resource Integration and System Reconstruction of Multiple Deep Adjacent Mines in Aging mine;
衰老矿区深部相邻多矿井资源整合与系统重构
6.
Strategic Ascertain of Reorganization for Aging and Abandoned Mine Enterprises
衰老报废矿井企业实施重组的战略探析
7.
The Application of Frequency Conversion Technique on the Main Drainning System of Old Coal Pit;
变频技术在老式矿井主排水系统技改中的应用
8.
The shaft of a mine.
竖坑矿的矿井或竖井
9.
Code for design of inclined shaft and chambers of coal mine
煤矿矿井斜井井筒及硐室设计规范
10.
A ventilating shaft, as in a mine.
（比如矿井中的）上风井
11.
To bore(a shaft) with a trepan.
钻用钻井机钻（矿井）
12.
the depth of the well, mine, box, trunk
井、 矿井、 盒、 行李箱的深度
13.
In the evening, Barras and Jennings went down and began to explore the old workings.
黄昏时分，巴勒斯和詹宁斯来到井下，开始仔细察看老矿区。
14.
open a mine, well, tunnel, etc
开矿、 打井、 凿隧道
15.
An excavation in the earth from which ore or minerals can be extracted.
矿，矿井采掘矿石或矿物的地下坑道
16.
Code for design of chambers around pit-bottom of coal mine
煤矿矿井井底车场硐室设计规范
17.
There were seventy men in the mine when it blew up.
矿井爆炸时，井里有70 个矿工。
18.
(5) having a good communications system for dispatch on the surface, underground, within and out of the coal mine;
（五）井上、井下、矿内、矿外调度通讯畅通；