coal mining gateway的用法和樣例：
例句
- A new anchor applied to the stoping tunnel supporting of coal mine is recommended.
介紹了一種用于煤礦回采巷道支護的新型錨桿。 - With the increase of the depth of coal seams mined, rock bursts will easily occur in gateways with fully-mechanized sublevel caving mining.
摘要隨著(zhù)煤礦開(kāi)采深度增加，綜放開(kāi)采回采巷道易發(fā)生沖擊地壓危害。
