1.
Improving Growth of Street Trees by Boring the Rhizo$pheric Soil for Aeration
土壤钻孔通气法对行道树生长的改善
2.
Study on the Measure of Boring in the Rhizospheric Soils to Aerate for Meliorating the Weak Growth Potential of the Urban Tree;
根际土壤实施钻孔通气法对改善行道树生长势衰弱的实验研究
3.
Researches on the Key Technologies of Hollow-Through DTH Used in Gas Drilling
气体钻井用贯通式潜孔锤关键技术研究
4.
A hole or passage made by or as if by use of a drill.
钻孔，打洞用或似用钻打孔或通道
5.
Study on Drilling Tests of PCB Through-Hole Drilling
钻PCB通孔钻切削性能的钻削试验研究
6.
On the quality problems in drilling
浅谈如何防治钻孔灌注桩钻孔施工时质量通病
7.
Hole Clearing by air-lift reverse circulation method in bored piles
冲(钻)孔灌注桩气举反循环清孔工艺
8.
The Better Chosen of the Field Arrangement of the Drill Hole Pulls Out Putting Drills and the Drill Hole Parameter of the Coal Bed Gas in PanJiang Mining Area;
盘江矿区煤层气钻孔抽放钻场布置及钻孔参数优选
9.
The air passage is called the air bleed.
空气通道叫通气孔。
10.
Application of Drilling Engineering in Fracturing Test Borehole of Gasification Coal Mining
钻探工程在气化采煤压裂试验钻孔中的应用
11.
A Brief Explanation of Air Actuated DTH Hammer Drilling Efficiency
空气潜孔锤钻进是提高钻进效率的有效途径
12.
Principle and Application of Air-lift Reverse Circulation in Bored Pile
钻孔灌注桩气举反循环的原理与应用
13.
Research of Technology Problem with Pneumatic Downhole Hammer Core Drilling
气动潜孔锤取心钻进工艺问题的研究
14.
To draw off(a liquid) by piercing a hole in a cask or other container.
钻孔汲取通过在桶或其它容器上钻孔来汲取（液体）
15.
Reason and Precaution of Quality s General Defects in Drilling Perfusion Stake;
钻孔灌注桩质量通病的成因及其预防
16.
The heat contained in a natural steam field is exploited by drilling a suitable number of wells down to the reservoir.
天然蒸气田所含有的热能可以通过钻井的方法，即打适当数量的井孔到达热储的方法进行开采。
17.
tap(ping) drill
螺丝孔钻，螺丝底孔钻
18.
The sorker was drilling.
此工人在用钻孔机钻孔。