扩帮
- 网络expanding rib; slashing; side slope extension
扩帮扩帮
expanding rib
矿产能源英语 _英语学习_世贸人才网 ... crew leader 带班长 expanding rib 扩帮 cut bottom 割底 ...
slashing
... 149 片层(刷帮)爆破 slab blasting 150 扩帮 slashing；chopping 151 上部超前掘进-下向回采 top heading-underhand stoping ...
side slope extension
扩帮工程,Wall slash... ... ) steep side expansion 陡帮扩帮 ) side slope extension 扩帮 ) expansion project 扩建工程 ...
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