drill tubing

• 钻柱

drill tubing的用法和样例：

例句

1. The calculation results demonstrate the effective eccentricity and the lifting force of the upper drill string are the major influential factors.
   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。
2. 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。