Practices have proved that quick advancing techniqe is applicable in isolated unmined area Comprehensive top coal caving face.
实践证明,孤岛综放
快速推进技术是可行
。
开采
使用;被发
;经勘探;
;开发;;Practices have proved that quick advancing techniqe is applicable in isolated unmined area Comprehensive top coal caving face.
实践证明,孤岛综放快速推进技术是可行。
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