...β β1 2β 2 ※ 弦长（chord length） l R β 2 β 1 R 2 β ※叶片角度关系式 l β 2R β 2 β 1 β 2※ 弧高（camber height） f l l 8R 7※ 叶片间距（blade pitch/ spacing） 叶片的彼此间距会影响风扇气动性能，及风扇所产生的噪音，间距太小（即流道过窄...
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通过计算出的参数确定总成和自由状态下板弹簧的弧高和自由曲率。
Determined by calculating the parameters of the state assembly and freedom of the arc springs and free high curvature.
传统的前向拱丝越来越难以满足目前封装的高密度要求，反向拱丝能满足非常低的弧高的要求。
Traditional forward looping technology is becoming hard to meet high-density requirements of IC Packaging, and reverse looping can comparatively achieve very low loop height.
弧面分度凸轮机构是一种精密分度机构，因其具有分度数大、分度精度高、定位可靠等优点，被广泛应用于各种自动机械中。
Roller gear CAM mechanism is a type of indexing device. It is widely used in various automatic machines because of large indexing Numbers, high indexing precision, reliable localization etc.
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