coal gate
·2,447,543篇论文数据，部分数据来源于NoteExpress
建造防水闸门硐室，进行水平、区上下组煤隔离，是预防水患普遍采用的方法。
A construction of the water dam chamber for isolation between horizontal and up and down seam in a mining district is one of the comment water prevention and control methods.
youdao
应用推荐
模块上移
模块下移
不移动