As an application example study,the paper also proposed a new mining design method for steeply-inclined coal multi-seam mining under buildings.
作为应用实例,研究了建筑物下急倾斜煤层群开采设计理论。
·2,447,543篇论文数据,部分数据来源于NoteExpress
应用推荐
模块上移
模块下移
不移动