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- three unders in coal mining 三下采煤
- Township enterprises mainly in coal mining. 乡镇企业以开采煤炭为主。
- The largest risk in coal mining is the collapse of the mine. 煤矿生产过程中可能出现的最大危险就是巷道崩坍。
- Experience of the application of CAD in coal mine design. 介绍了CAD在煤矿设计中的应用效果。
- So, EME can be applied to forecast the rock burst in coal mine. 研究表明，电磁辐射基本上随著加载及变形速率的增加而增强；
- The application result of CAD in coal mine design is introduced. 介绍了CAD在煤矿设计中的应用效果。
- According to the creep mechanics test parameters, we have constructed a nonlinear creep formula, which provides a theory basis for roadway support in coal mining under the sea. 根据含油泥岩蠕变力学参数，推导出横向各向异性非线性蠕变方程，为海下开采条件下的巷道支护提供了理论依据。
- Many soldiers went under in the Civil War. 许多士兵在内战中阵亡。
- Foul or poisonous gas that sometimes pollutes the air in coal mines. 矿井瓦斯，有毒气体矿井中有时污染空气的恶臭气体或有毒气体
- It has some guidance meanings in coal mine use this technique in the aftertime. 对今后煤矿运用该支护技术提供了指导作用。
- All units and individuals shall be forbidden to disrupt the order of production and other work in coal mine areas. 禁止任何单位和个人扰乱煤矿矿区的生产秩序和工作秩序。
- Customers and coal trading enterprises in coal marketing areas shall have the right to buy coal directly from coal mining enterprises. 煤炭用户和煤炭销区的煤炭经营企业有权直接从煤矿企业购进煤炭。
- We will continue to work to bring coalmine gases under control and to remedy safety problems in coal mines. 继续打好煤矿瓦斯治理和矿山整顿两个攻坚战。
- We will continue to work to bring coalmine gases under controlto remedy safety problems in coal mines. 继续打好煤矿瓦斯治理和矿山整顿两个攻坚战。
- The other boxer put Jim under in the third round. 第三个回合拳击对手将吉姆打昏了。
- The fire extinguishing measures adopted in coal mining area are introduced.It has made good result. 介绍了单一煤层采区发火时采用的灭火措施并收到了良好的效果。
- One of these pills will put you under in an hour. 这种药丸吃1粒就能使你在1小时内入睡。
- The utilization of CMM drained in coal mining is quite difficult because it contains plenty of air. 煤矿开采时所抽采的含空气的煤层气难以得到很好的利用。
- Township enterprises in coal mining, timber and small Goods processing, collection-based Chinese herbal medicines. 乡镇企业以煤炭开采、林木及小山货加工、中药材采集为主。
- Conclusion DALY fits to evaluation of the burden of disease in coal mines. 结果提示：DALY 可用于煤矿职业性疾病负担分析。
