long hole drilling 中文意思是什麼

long hole drilling 解釋
深孔鉆進
  • long : n 朗〈姓氏〉。vi 渴想，極想，渴望 （for 〈古語〉 after to do）。adj （longer longest ）1 長，長的...
  • hole : n 1 洞，穴，孔；（衣服等上的）破洞；傷口；漏洞；窩，坑；水流的深凹處，（河道的）緩流窪。2 （獸的...
  • drilling : n 1 鉆孔；【礦物】鉆井；〈pl 〉鉆屑，鉆粉。2 操練，訓練。n 【農業】條播。 ridge [furrow] drilling...
  1. Drilling technology of long hole using for discharging gas from coal seams

    抽放瓦斯順煤層長鉆孔施工技術
  2. An approach to the cause of failure of large diameter long - hole drilling tools

    大直徑深孔鉆具失效原因探討
  3. Comprehensive gas drainage method with long directional drilling hole

    定向長鉆孔綜合抽放瓦斯方法
  4. Construction technique of foam method for drilling long gas extraction hole

    泡沫法施工瓦斯抽放長孔工藝
  5. High angle multi - target directional well drilling technology in long open hole

    長裸眼大斜度多目標定向井鉆井技術
  6. Testing application of high and medium wind pressure down - hole drillin long and medium hole drilling

    15型履帶式中風壓潛孔鉆車
  7. Prospect of application of foam pump increasing pressure equipment in construction of drilling long hole for sucking and exhaling mash gas

    泡沫增壓技術在煤礦瓦斯抽放長鉆孔施工中的應用前景
  8. Design and application of horizontal long bore hole drilling rig

    近水平長鉆孔鉆機的設計及應用
  9. Abstract : this paper made an approach to the form and cause of the failure of large diameter long - hole rock drilling tools in anqing copper mine and put forward some ways for extending the service life of rock drilling tools in the light of its practical use

    文摘:文章主要就安慶銅礦大直徑深孔鑿巖鉆具的失效形式和原因進行了探討，並從鉆具使用角度出發提出了提高鑿巖鉆具使用壽命的途徑。
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