coal mining gateway是什么意思 coal mining gateway怎么读
coal mining gateway的用法和样例
- A new anchor applied to the stoping tunnel supporting of coal mine is recommended.
介绍了一种用于煤矿回采巷道支护的新型锚杆。 - With the increase of the depth of coal seams mined, rock bursts will easily occur in gateways with fully-mechanized sublevel caving mining.
摘要随着煤矿开采深度增加，综放开采回采巷道易发生冲击地压危害。
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