The rock drill is indispensable for digging coal mines.

Some coal mines had to shut down.

有些煤矿不得不关闭.

Pipe Gas: Gas from coal mines and supplied through pipe line.

煤气,一般指煤矿抽出的瓦斯气.

The local coal mines supply the fuel for power stations.

当地的煤矿为发电站供应燃料.

Chinese coal mines are often located far from users of energy.

中国的煤矿所在地往往远离能源使用大户.

China's coal mines are regarded as the most dangerous in the world.

中国的煤矿被认为是世界上最危险的煤矿.

CHAPTER III PRODUCTION OF COAL AND SAFETY OF COAL MINES.

第三章煤炭生产与煤矿安全.

West Virginia has ~600 working coal mines.

西弗吉尼亚有600名在职矿工.

To be responsible for the rectification and closure of coal mines.

负责指导煤矿整顿关闭工作.

A steam locomotive is still used in the coal mines here.

这里煤矿仍然在使用蒸汽机车.

Coal mines are ugly, and their development has a serious effect on animal and plant life.

煤矿龌龊, 而煤矿的开发还会严重影响动植物的生长.

To undertake the related work of gas control of coal mines.

承担煤矿瓦斯治理有关工作.

Coal miners have to work in the depths of the earth.

煤矿工人必须在地表深处挖煤.

We saw a documentary about Yorkshire coal miners.

我们看了一部有关约克郡煤矿工人的纪录片.

Coal miners have to work under the ground.

煤矿工人须在地下工作.

Coal-miners are a tough breed.

煤矿工人都是能吃苦耐劳的.

In Utah crews get close to the six trapped coal miners.

在犹他州救援人员已经接近6名被埋矿工.

Coal miners often suffer from an illness black lung disease. Many have died from it.

矿工经常会染上肺病, 许多人因此而死去.

In Utah , crews get closer to six trapped coal miners.

犹他州(煤矿事故)搜救人员快要找到被困矿工了.

Objective To probe the causes of death of coal miners pneumoconiosis complicated with pulmonary tuberculosis.

目的探讨煤工尘肺合并肺结核及其并发症的致死原因.

Rescue workers were sent to relieve the trapped coal miners.

抢险人员被派去解救被困在井下的煤矿工人.