炮孔布置
- 网络arrangement of holes; drilling hole pattern
炮孔布置炮孔布置
arrangement of holes
土岩爆破一般术语 ... 31 炮孔布置 arrangement of holes 32 炮孔 blasthole；borehole ...
drilling hole pattern
什么意思... ... bottom hole pattern 井底形状 drilling hole pattern 炮孔布置图 ; 炮孔布置 square hole pattern 方孔布置 ...