Accordingly, a calculation formula for the groove ovality factor of the deformation section is deduced, and the effective range of the groove ovality factor is set.
推导了变形区孔型椭圆度系数的计算公式，确定了孔型椭圆度系数的有效范围。
This is an important factor in determining the operating limits of coiled tubing strings since the action of spooling the string tends to induce some ovality.
这是确定挠性管柱工作范围的重要因素，因为挠性管的缠绕趋向于产生某个椭圆度。
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