1) drift-orepass development
平硐溜井开拓
2) tunnel-orepass system
平硐溜井
1.
Mining methods employed include developing tunnel-orepass system,short hole pillar complemented with short hole shrinkage.
嵩县某金矿属较难采矿石,矿山采用平硐溜井开拓系统,开采选用浅井房柱法,辅以浅孔留矿法。
3) adit devebopment
平硐开拓
1.
It was considered to be feasible applying natural draft ventilation in small mine applying adit devebopment in mountainous region , in particular environment .
并认为,山区平硐开拓的小矿山,在一定条件下,采用自然通风是可行的。
4) chute-level adit transportation
溜井-平硐运输
5) tunnel mining
平硐开采
6) drift pass
平洞溜井
补充资料：平硐
见矿山井巷。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条