1) subhorizontal drilling
近水平孔
1.
Design and experiment of downhole hydraulic packer for coalbed methane subhorizontal drilling;
煤层气近水平孔孔底水力封隔器设计与试验
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) quasi-horizontal directional drilling hole
近水平定向孔
4) high location strike near-horizontal hole
高位近水平钻孔
5) 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
6) near level
近水平
1.
Yuwu Mining Company uses the near level direction drilling technology which has constructed many bleeder holes and optimized the working area drainage system.
余吾煤业公司采用近水平定向钻进的技术,施工了多个泄水孔,优化了采区排水系统,提高了矿井抗水灾能力,同时也建立了新的采区排水模式。
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