... approximate expansion 近似展开 approximate expression 近似表达式 approximate factor value 近似要素价值 ...
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By type factors and transitional momentum integral equation, the approximate expression of momentum thickness is presented as well.
借助于型参数，通过变换动量积分方程，得出动量损失厚度近似解的表达式。
An approximate expression of the volume of body of rotation together with its error estimation is derived on the basis of theory of numbers.
本文用数论方法推导出一个计算旋转体体积的近似公式，并给出该近似公式的误差估计。
The approximate expression of parasitic inductance of flat line and twisted pair line is proposed after the study of parasitic inductance in the AC bus.
通过对母线的寄生电感分析，给出了扁平线和双绞线寄生电感的近似表达式。
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