drill tubing
英
美
- 钻柱
双语例句
- The calculation results demonstrate the effective eccentricity and the lifting force of the upper drill string are the major influential factors.
计算结果表明，有效偏心距和上部钻柱的提升力是影响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.
对钻井技术的理论研究和预防钻柱失效具有指导意义。
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