The medicament preparation, adding and automatic control coal preparation plant , Dongtan Coal Mine are introduced.

Datong Coal Mine Group chairman and party secretary Wu Yongping, made a speech at the ceremony.

同煤集团董事长、党委书记吴永平在仪式上作了讲话.

A retired coal miner painted a picture of a train carrying coal.

一个退休的煤矿工人画了一幅运煤的火车.

As a coal miner, Mr. A always looks like something the cat dragged in.

A先生是个煤矿工人, 看来总是脏兮兮.

My electrcit level is very high , al thou once I am a coal miner.

我的电气化知识水平还是不错的,虽然以前我只是一个煤矿工人.

Are you a coal miner? Yes, I am.

你是一个采煤工 吗 ?是的, 我是.

Then he goes down the hole to work as a coal miner.

接著他要进入地下担任煤矿工人.

A coal miner for most of his years , father knew only the hardest kind of life.

父亲当了大半辈子煤矿工人, 饱尝着生活的艰苦.

I am the son of a coal miner.

我是一名矿工的儿子.

I am a coal miner.

咱们是矿工.

He sketched the coal miner in a few minutes.

他几分钟就画了一幅那位煤矿工人的素描.

He is a coal miner and his job is dirty and dangerous at the best.

他是一个煤矿工人,他的工作再好也免不了既脏又危险.

Twice he brought in his walking stick, and once he brought in the coal scuttle.

有两次他把他的拐杖带进去, 而有一次他带进去一个媒斗.

The migrating methane by cross-borehole in coal seam is used in this condition.

交又钻孔抽放本煤层瓦斯正是在这种条件下产生的.

Grave protrusion coal seam tunnelling hydraulic cutting protrusion-dispelling measures is a new technology in the world.

严重突出煤层掘进水力掏槽防突措施在国际上是一种防突新技术.

Exploration evaluation coal seam gas is a base of coal seam gas exploration and developing.

煤层气的勘探评价,是开展煤层气勘探与开发工作的基础.

Essential way of solving the gas drainage problem of low permeability coal seam is seam permeability.

高瓦斯低透性煤层的瓦斯抽放,一直是煤矿安全生产过程中的重大技术难题.

The surrounding rock of roadways in soft coal seam has low strength and bad stability.

软煤巷道围岩强度低,稳定性差.

This paper is a guide to precise determination of the content of coal seam methane.

对正确测定煤层瓦斯含量有一定的指导意义.

This paper goes further into blast-winning technology of the composite coal seam face.

深入探讨了复合煤层回采工作面“松动放炮”落煤的工艺问题.

There are of forms of gas discharge , but the form is soft coal seam gas discharge.

目前在瓦斯抽放中急待解决的问题是软煤层瓦斯抽放的打钻技术,尤其是深孔打钻技术.