1.
Finite-element Simulation of the Releasing Process of Existing Stress in Concrete Structures by Drilling Hole Method
混凝土构件内现存应力钻孔释放过程的有限元模拟
2.
Testing Research of Laneway Wall Rock Stress Released by Advanced Bore Decompression Explosion Technique
超前钻孔卸压爆破技术释放巷道围岩应力试验研究
3.
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
4.
Design for drawing out gas with high position boring at coal face
轻放工作面抽放瓦斯高位钻孔的设计
5.
Research on Bit for Efficient Drilling of Gas Drainage Borehole in Nantong Mining Area;
南桐矿区瓦斯抽放孔快速钻进钻头的研究
6.
Gaseous excretion takes place by diffusion through the stomata and lenticels.
气体通过气孔或皮孔释放的方式排出。
7.
Research on the technology of integrated interchange drilling to drainage gas
综合立体交叉钻孔抽放瓦斯技术研究
8.
Gas Drainage Technology of Goaf with Boreholes from Surface Ground of Tangshan Mine
唐山矿地面钻孔抽放采空区瓦斯技术
9.
A Study of the Second Hole Sealing Method to Improve Gas Drainage in Coal Seams
煤层瓦斯抽放钻孔的二次封孔方法研究
10.
Pressure releasing and gas drainage with long bore hole in roof overburden of fully mechanized caving face
综放面顶板覆岩走向长钻孔卸压抽放瓦斯研究
11.
tap(ping) drill
螺丝孔钻，螺丝底孔钻
12.
The sorker was drilling.
此工人在用钻孔机钻孔。
13.
A tall framework over a drilled hole, especially an oil well, used to support boring equipment or hoist and lower lengths of pipe.
钻架竖在钻井（尤指油井）之上的支架，用来支撑钻孔设备或提升和下放钻管
14.
When drilling deep holes, the feed movement should be released from time to time.
在钻深孔的时候，有时必须放松进给运动。
15.
Application of Technology of High Gas Cannon Picking Roof Perforate Gas Administer
高瓦斯炮放面顶板钻孔法瓦斯治理技术应用
16.
Gas drainage in seam with large auto variable diameter bore holes
自动变径大直径钻孔抽放煤层瓦斯试验
17.
Application and analysis on high level borehole gas drainage technology in mined-out area
采空区高位钻孔瓦斯抽放技术应用与分析
18.
Fire Prevention Practice on Drilling Holes with Inclined Slices on Fully Mechanized Face Roof of Thick Seams in Junde Colliery
峻德矿特厚煤层综放面顶板下斜钻孔防火实践