initial caving的意思|示意
美 / /
英 / /
初次落顶
initial caving相关短语
1、 initial sublevel caving mining method 低分段崩落法
initial caving相关例句
It is concluded that the shotcreting - bolting support is a effective measure guarding against initial caving.
认为采用喷锚支护是防止其初始冒落的有效措施.
互联网