鉆桿壽命 的英文怎麼說

中文拼音 [zhēngǎnshòumìng]
鉆桿壽命 英文
drill-rod life
  • : 鉆Ⅰ名詞1. (打眼用的工具) drill; auger 2. (指鉆石) diamond; jewel Ⅱ動詞(用尖物在另一物體上轉動) drill; bore
  • : 桿名詞(桿子) pole; staff
  1. Field operation shows that, by using the hydrodynamic propulsor, not only the penetration rate is increased, the vibration of the bit and drill stem is reduced as well, thereby the service life of the bit is extended

    1995 - 1998年井下液力推進器在大港油田等地區不同區塊20餘口井上施工的實踐證明,使用這種推進器不但可以提高機械速,而且減輕了頭和的振動,進而延長了
  2. A new type rod damping stabilizer for rotary drills ispresented. it can increase the service life of rotary bit by about 27 % and its own life is over ten thousand meters. as a result, good econom ic benefit can be obtained

    介紹了牙輪機用的一種新型減振穩器,提高牙輪頭使用27 %左右,其本身使用超萬米,獲得了良好的經濟效益。
  3. Analysis of factors that influence working life of screw drill

    影響螺具工作的使用因素分析
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