Artificial hole  人造孔洞

artificial hole digging pile  人工挖孔桩

Artificial hole filling pile  人工挖孔桩

Anchor Hole  锚固

drawing hole forming technique  拉深孔成形

drawing-hole forming technology  拉深孔成形技术

efficiency of hole forming  成孔效率

Forming-hole Technology  成孔技术

HOLE FORMING  成孔

Hole Forming Technology  成孔技术

hole forming tree planter  植树成穴机

hole hole interaction  空穴-空穴相互酌; 空穴-空穴相互作用

HOLE-FORMING  成孔

Hole-forming Methods  成孔方法

A shrinkage method combining with medium-length hole and shallow hole  分段留矿法; 等效杂讯电荷

electron-hole liquid drop (=electron-hole droplet)  电子电洞低液

hole by hole blasting  逐孔起爆

hole by hole blasting technique  逐孔起爆技术

hole by hole detonating  逐孔起爆