Then expatiate the geometry structure parameter and the ponderance of modification wrap.
阐述了双头涡旋型线几何结构参数及其修正的必要性。
The geometry features of involute of regular polygon are analyzed. It is indicated that the involute of even regular polygon can be used as the scroll wrap.
分析了正多角形渐开线的几何特性，指出角数为偶数的正多角形渐开线可以用作涡旋型线；
The geometry features of involute of regular polygon are analyzed. It is indicated that the involute of even regular polygon can be used as the scroll wrap.
分析了正多角形渐开线的几何特性，指出角数为偶数的正多角形渐开线可以用作涡旋型线；
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