超大直径深基坑
super large diameter deep foundation pit
超大直径深竖井
large diameter deep shaft
超深大直径
ultra-deep and large diameter
大直径深层旋喷搅拌桩
large diameter deep mixing pile
大直径深长钻孔灌注桩
large-diameter bored cast-in-situ deep and long pi
大直径深孔
large diameter longhole
big-deep holes
big-diameter deep-hole
deep-hole with large diameter
大直径深孔爆破
large diameter deep hole blasting
大直径深孔采矿
Large diaamneter longhole mining
large-diameter longhole mining
大直径深孔采矿法
Large diameter longhole mining method
Large diameter longhole mining
大直径深孔阶段矿房法
large-diameter deep-hole mining by sublevel room work method
大直径深孔凿岩
Large diameter long-hole drilling
高阶段大直径深孔采矿
large diameter deep hole mining of high stage
高阶段大直径深孔采矿法
high sublevel
large diameter and long hole stoping method
大直径水平长钻孔
the large diameter horizontal long drilling hole
大直径水平孔
horizontal hole with large-diameter
超长大直径桩
super-long large diameter pile
Super-long and large diameter boring pile
extra-long and large diameter
super long-large diameter pile