软弱破碎围岩
soft fractured surrounding rock
weak broken wall rock
Soft and Fractured Surrounding Rock
weak surrounding rock
soft fractured ground
矿体松软破碎
floppy and broken orebody
破碎软岩巷道
incompact and fractured soft-rock roadway
松软破碎围岩
soft and broken surrounding rocks
爆破破碎性能
explosion and crash property
层间滑动破碎带
interlayer sliding fracture belt
层间挤压破碎带
layer compression fracture zone
层间剪切破碎带
intercalated crushed zone
层间破碎带
intralayer fracture zone
interformational faulted zone structure