1.
Analysis of calculation of expanded size of punched hole and compression punching type;
浅析抽孔、压缩抽型的展开尺寸计算
2.
Calculative methods for the complicated draw-hole sizes in the design of dies;
冷冲模设计中的复杂抽孔尺寸的计算方法
3.
The new measuring method for distance of the gas drainage hole and seam permeability
瓦斯抽采孔孔距及煤层透气性的测定方法
4.
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
5.
Study on Rational Borehole Space of Crossed Boreholes for Gas Pre-drainage
预抽煤层瓦斯交叉钻孔合理孔间距的研究
6.
Study and Application of Negative Pressure Breast Pump with Side Hole
侧孔抽吸式负压吸乳器的应用性研究
7.
drawer sides dowels cutting and holes drilling machine
圆棒榫截断及抽屉端部钻孔机
8.
His face began to work violently.
他的面孔开始剧烈地抽动。
9.
Its removal draws soil air into the hole.
其拔起的动作会把土壤气体抽入孔中。
10.
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
11.
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
12.
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
13.
Technology of 1000 meter directional borehole at large diameter for mine gas extraction
顶板大直径千米长钻孔抽采瓦斯技术
14.
Study on Technology of Bores Through Coal and Rock Seams Draining Long Distance Pressure Relief Gas in Bed Plate Tunnel;
底抽巷上向穿层钻孔抽放远程卸压瓦斯技术研究
15.
The Design and Application of Measure Sampling Inspection in Perforator's Sampling Inspection Plan
计量抽样检查在射孔器材抽样检验方案的设计与应用
16.
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
17.
Bored piling shall be used for the pumping station and bridges for the Projects.
钻孔式打桩应用于工程项目中的抽水站和桥。
18.
The other equipment employs a pump to extract ground air from the hole.
第二种设备使用一个泵，从孔中抽取地下气体。