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一对螺旋齿轮,过其接触点处的齿面公法线必通过节点。按照此原理,作者推导出了计算任意齿形的齿轮滚刀刃形的公式。
A pair of helical gears that pass through the nodal point of the tooth normal at the point of contact. According to this principle, the author deduced the formula for calculating the gear tooth shape of any tooth profile.