煤矿井下 underground coal mine ; coal mine underground
煤矿矿井 coal mine
煤矿井下充填工 waller ; pack builder
煤矿竖井 coal mine vertical shaft
一一井煤矿 goaf ; YiYi Jing Coal
煤矿矿井水分类 Classification of coal mine water
煤矿井下工人滑囊炎 Bursitis of Underground Coal Miners
煤矿矿井水 coal mine water ; coal-mine drainage
煤矿井下安全标志 Coal mine underground safety signs
煤矿酸性矿井水 acid coal mine drainage
到周一为止，自新西兰煤矿毒气爆炸已经过去三天，关于营救被困29名矿工的舆论压力不断增加，但由于矿井内毒气太重而无法施救。
Pressure mounted Monday to launch a search for 29 men trapped in a New Zealand coal mine for three days since a gas explosion, but the mine remained too dangerous to enter.
在板定梁煤矿，矿井已被挖进山体深处，卡车司机开了30分钟才到达采煤工作面，装上煤之后满载而归。
At the small Bandingliang colliery, the pit has been dug so far into the hillside that truck drivers take 30 minutes to reach the coalface, fill up and return with their load.
蒸汽机早期用于矿井和铁路抽水来转移其周围的煤矿。
Steam engines were originally designed to pump water out of the pits and railways to move coal around them.
应用推荐