drill tubing的用法和樣例：
例句
- 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。 - The method in the paper is of guiding significance for the theory study of drill technique and perverting drillstring from failure.
對鉆井技術(shù)的理論研究和預防鉆柱失效具有指導意義。
