1.
Research on Mechanics and Application of Orifice Space Loading in Middle and Deep-hole Rock Blasting
中深孔孔口空腔装药技术的研究及其运用
2.
Study on drill bit for large diameter core drilling of deep hole in hard rock
硬岩深孔大口径取芯钻进的钻头研究
3.
Drilling 50 yards deep,
钻孔至50码深处，
4.
Treatment of the filling cavern in the tunnel with deep and large bore cast in place pile
深孔大口径灌注桩处理隧洞中的充填型溶洞
5.
Processing Technical Study for Steam DrumTemperature-Measuring Seat Small Bore Deep Blind-Hole
汽包测温座小口径深盲孔的加工工艺研究
6.
tongue-and-groove pass
闭口[直轧闭]孔型
7.
Research on Mechanics of Charging Structure of Bottom Gas-Space in Deep-hole Blasting Engineering;
中深孔爆破孔底空腔装药机理的研究
8.
On the Application of Outer-hole Blast in Medium Length Hole
孔外延期爆破在中深孔爆破中的应用
9.
Construction technology of excavated and cast-in-place piles with a large diameter and an extra depth in karst geology
岩溶地质大孔径超深桩挖孔施工技术
10.
guide twist drill
有导径的深孔麻花钻
11.
long hole raising
深孔爆破法天井掘进
12.
sublevel blast-hole method
深孔分段崩落采矿法
13.
Any of the small openings or pores in a sponge.
孔隙海绵上的小孔或小口
14.
A small opening or pore, as of a fruiting body.
小孔小的开口或小孔，如子实体的
15.
Fasteners--Split pin holes and wireholes
GB/T5278-1985紧固件开口销孔和金属丝孔
16.
Having no opening; not perforated.
不开口的，不穿孔的
17.
bell mouth of stem hawse pipe
船首锚链孔的喇叭口
18.
access fittings
门、舱口和孔的附件