1·Installed underground coal mine.
安装煤矿井下。
2·The surface subsidence basin is the result of underground coal mining.
地下采煤会导致地表下沉盆地的形成。
3·In the early days of underground coal mining, pit canaries often had short but valuable lives.
早期地下采煤的时候，矿井中的金丝雀常常拥有短暂而有价值的一生。
4·The State shall take special protective measures for miners working in underground coal mines.
国家对煤矿井下作业的职工采取特殊保护措施。
5·In this paper the author of underground coal mine deep hole blasting technology in this paper.
本文笔者就其中井下煤矿深孔爆破施工技术进行阐述。
6·Underground coal gasification is the main direction of coal mining and utilization in the future.
煤地下气化是未来煤炭开采和利用的主要方向。
7·Great progress on research for underground coal gasification technology has been also obtained in China.
我国对煤炭地下气化技术的研究取得了很大进展。
8·In the exploiting area of underground coal mine, most of them are facing the underground water discharge.
在地下煤矿开采的地区，大都伴之有地下水排放。
9·The basic characteristics of gas convective diffusion of underground coal gasification (UCG) are studied.
气化气体对流扩散的基本特征。
10·This marks that China in the areas of underground coal gasification has been among the highest in the world.
这标志中国在煤炭地下气化这一领域已跻身世界前列。