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It can be extensively applied to tubing string for oil production technology.
可广泛应用于油水井增产增注工艺管柱上.
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The tubing string lifting velocity of the conventional mechanic rig under each particular gear is constant.
常规机械式修井机每一档下的管柱起升速度为常量.
Therefore, it's important to make research on the force and deformation of tubing string.
因此, 研究水平井测试管柱的受力及变形具有重要意义.
油管柱???
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