The transition curve is a familiar curve form. And lofting with polar coordinates method can break through localization of deflection Angle method.

缓和曲线是一种常见的曲线形式。使用极坐标法放样可以避免偏角法的局限性。

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And lofting with polar coordinates method can break through localization of deflection Angle method.

使用极坐标法放样可以避免偏角法的局限性。

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