大量开挖
基于1个网页-相关网页
大规模挖土
bulk excavation works 大型挖掘工程
·2,447,543篇论文数据,部分数据来源于NoteExpress
During the initial excavation, the tender coal seam workings in deep seam in Nantun Colliery takes on slocking of roof, with breaking-out in bulk coal and surrounding rock failure.
南屯煤矿深部松软煤层巷道,在掘进过程中顶板破碎,伴有大量顶煤冒落且围岩破坏严重。
youdao
应用推荐
模块上移
模块下移
不移动