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- mining of shaft coal pillar 井筒煤柱开采
- The mining of ore or coal from an open mine. 从敞开的矿井开采矿石或煤。
- He's mine of information about insects. 他在昆虫方面有着渊博的知识。
- My neighbor is a mine of information about history. 我的一位邻居历史知识十分渊博。
- A good encyclopaedia is a mine of information. 一部好的百科全书是一座知识宝库。
- My grandmother is a mine of information about our family's history. 我的祖母是我们家史的资料库。
- deep mining of coal pillar 深部开采
- Alignment inspection installation of shaft generator and gear box. 轴带发电机及齿轮箱安装检查。
- The stability of coal pillar of the short-wall mining was analyzed systemically by numerical simulation with the rock failure process analysis software (RFPA2D). 采用岩石破裂过程分析软件RFPA2D系统，对短壁机械化开采的煤柱稳定性进行数值计算与分析。
- The mining of shallow coal bed in Shenfu Mine is seriously threatened by suffosion hazard of coal shaft. 神府矿区浅部煤层开采受到矿井溃砂的严重威胁。
- This guidebook is a mine of information. 这本旅行指南是资料的丰富来源。
- Shaft coal-pillar as well as mine plant coal-pillar is the only mineable resources in later stage of No. 6 coal mine of Changguang mining district. 摘要长广矿区六矿井筒与工业广场煤柱是矿井生产后期的惟一可供开采的资源，讨论了该矿复杂地质条件下井筒与工业广场煤柱开采的可行性；
- So,also,in the case of a mine of precious stones. 宝石采掘业的情况也是如此。
- The coal mines of North China are centred in Shanxi Province. 华北的煤矿集中在山西省。
- To make shaft coal cutting planning is a multi nodal decision making course for it's intricacy of influencing factor. 矿井采煤计划编制影响因素复杂,是一个多环节的综合决策过程。
- Dagushan Iron Mine of Angang Mine Co. 鞍钢矿山公司大孤山铁矿。
- Measuring dimension of shaft coupling bolts and reamer hole. 轴系连接螺栓和钻孔尺寸测量。
- Put forward redistribution of stress in the mining area and Domino effect caused by unstability of coal pillar underground, resulting in sudden roof caving in the gob and surface subsidence. 提出了采场内煤柱失稳破坏引起采场应力重新分布，出现煤柱群连续失稳破坏的多米诺效应，从而导致采空区顶板大面积突然垮落和地表整体塌陷。
- A useful trade is a mine of gold. 一样有用的手艺是取之不尽的财富。
- Secondly, simulation elicits wall rock transmogrification under the different coal pillar and different stress. 其次模拟研究分析了留设煤柱宽度不同时以及地应力大小不一时沿空巷道围岩变形情况，得到了一些认识；
