至于深层的煤碳则需要使用「竖井开采(shaft mining),由地面往下建造一个通往煤层的竖井后,工作人员可以由地面搭电梯抵达,操作一种能将煤碳粉碎并不断开路的机器,在地底开通出...
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ri-gold-shaft-mining 采金装置
mining of shaft coal pillar 井筒煤柱开采
shaft t mining 竖井开采法
shaft column mining 井筒煤柱开采
mining shaft 矿井井筒
Not only is the escape shaft ready, but the special capsule that was sent down to rescue the men has been tested to a depth of 610 metres, and the Mining Minister Laurence Golborne says all went well.
不仅营救巷道做好了准备,用于搭救被困矿工的特制救生舱也在地下610米的深度进行了测试。 矿务部长戈尔本(Laurence Golborne)表示一切工作进展顺利。
Non-mining fracturing of shaft lining is a special engineering geologic hazard and is caused by interaction between mining and geological environment.
立井井筒非采动破坏是一种特殊类型的工程地质灾害,是人类采矿活动和地质环境相互作用的结果。
The fracture of shaft lining is a special type of engineering geologic disasters and is caused by interaction between mining and geological environment.
立井井壁破坏是一种特殊类型的工程地质灾害,是人类采矿活动和地质环境相互作用的结果。
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