drill-string

 
[d'r?lstr'??]     [d'r?lstr'??]    
  • 鉆柱

drill-string的用法和樣例:

例句

  1. The calculation results demonstrate the effective eccentricity and the lifting force of the upper drill string are the major influential factors.
    計算結果表明,有效偏心距和上部鉆柱的提升力是影響近井口套管偏磨的主要因素。
  2. A transmitter toroid induces a low-frequency current in the drillstring, which flows out of the bit and returns farther up the string.
    發(fā)射線(xiàn)圈在鉆柱內感應出低頻電流,從鉆頭流出,在鉆柱上部返回。

drill-string的相關(guān)資料:

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