1) high location strike near-horizontal hole
高位近水平钻孔
2) approximate horizontal long-hole
近水平长钻孔
1.
Experimental research on using approximate horizontal long-hole instead of closed high extracted roadway to drain gas;
顶板近水平长钻孔替代闭式高抽巷进行瓦斯抽放的试验研究
3) Subhorizontal Drilling
近水平孔钻进
1.
Research on In-situ Exploring and Hydraulic Correction Technology for Coalbed Methane Subhorizontal Drilling;
煤层气近水平孔钻进原位探测与水力纠偏技术研究
4) high level borehole
高位钻孔
1.
Theory and practices on high level borehole gas drainage technology;
高位钻孔瓦斯抽放技术理论与实践
2.
Gas drainage with high level borehole in roof applied to gas control;
顶板高位钻孔抽放在瓦斯治理中的应用
3.
Application of gas drainage technology with high level boreholes in Zhuzhuang Mine;
朱庄煤矿高位钻孔瓦斯抽放技术的应用
5) high-level borehole
高位钻孔
1.
Determination of high-level borehole gas drainage parameters;
高位钻孔瓦斯抽放参数的确定
补充资料:近侧水平线
近侧水平线
皮纹学术语,系手掌属曲面褶线之一。起于拇指与示指之间,向尺侧延伸,终于小鱼际。通常用E表示。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条