引入了横截面形状修正因子，简化了公式的表达和计算。
And a shape factor is introduced into the expression, which simplifies the theoretical expression.
将各种不同气道截面等效于圆形，引入形状因子来衡量它们偏离圆形的程度。
The cross sections of various gas channels were equivalent to circles and the shape factor sf was taken to measure their departure from a circle.
将各种不同气道截面等效于圆形，引入形状因子来衡量它们偏离圆形的程度。
The cross sections of various gas channels were equivalent to circles and the shape factor sf was taken to measure their departure from a circle.
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