The geologist proves up a coal deposits.

地质学家探明了一个煤矿的藏量。

Coal miners have to work under the ground.

煤矿工人须在地下工作。

The coal miners have come out for about two weeks.

煤矿工人已罢工约两周了。

The auxiliary shaft topsoil adopted ordinary construction and drainages in hygrometric well.

屯留煤矿副井井筒表土段采用普法施工,利用井外降水井疏干降水。

Some colliers squatted upon their hunkers against the wall.

有几个煤矿工人靠著墙蹲著。

Aiming at difficulties in supporting dilatable soft rock roadway, control method was put forward to control effectively deformation and failure of dilatable soft rock roadway in Hongmiao Colliery.

针对庙煤矿膨胀性软岩巷道存在的难题，给出了针对性的巷道控，并在实践中得到了验证，有效地控了庙煤矿膨胀性软岩巷道的变形和破坏。

Large scale planar geological mapping, profiling survey and microfabric analyses proved that lithophysa structure was developed in rhyolite in Yingcheng coal mine area, Jiutai City.

过大比例尺平面地质续图、剖面测量和显微组构分析，九台营城煤矿区流纹岩中石泡构造发育。

The problems existed in electric supply protection for coal mine are introduced,and the features and result of the computerisation reform plan are provided.

介绍了煤矿供电保护存在的问题,提出了微机化改造的特点、效果等。

The paper intrduces the exchange CENTREX, dispatching equipment and the com-bination of them, and puts forward the methods of improving coalmining communication capabili-ty.

将交换机CENTREX功能用于煤矿调度机,从而提高煤矿信的综合能力。

The shortwall ladder prop mining method namely strip extraction has been more extensively applied currently in small coal mine of Shaanxi province.

短壁刀柱采煤法即条带开采,目前在陕西省小煤矿开采中较广泛应用。

Excavate coal is primary production link in coal mine production, therefor, Weaving excavate coal working face supersedure plan has instructional meaning.

采煤是煤矿生产中的主生产环节,因而编采煤工作面接替计划对煤矿生产具有指导性意义。

For maintenance convenience,many electric switches for mine are adopted pinboard construction in order to reduce effect of coal mine production.

为了维修便,许多矿用电气开关采用插接式结构,以减少对煤矿生产的影响。

They are mining for coal.

他们在开采煤矿。

The coal miners struck.

煤矿工人罢工了。

Coal mine rockbolt shoring current situation,necessity and significance having discussed rockbolt shoring parameter optimization design combining with leaping forward.

结合跃进煤矿锚杆支护现状,探讨了锚杆支护参数优化设计的必性和重性。

The harnessing of noise and smust to boiler are studied,pugging and ventilation are adopted to harnest noise of fan.

过对煤矿锅炉噪声治理和烟尘治理的研究,阐述了过采用隔声罩和机械风冷却设施对引风机和鼓风机的降噪治理。

The new muffler device has simple structure,it has lesser effect on the resistance loss of chief ventil...

该消声装置结构简单,对主风机的阻力损失影响小,防尘、防潮及降噪效果明显,可广泛的应用于煤矿主风机的消声降噪。