addendum distance 齿冠距离...addendum circle 齿冠圆...addendum angle 齿冠角...addendum increment 齿冠增量...nominal addendum 标准齿冠...addendum modification 变位量...addendum n.补遗,附加物附加物;齿顶补...amount of addendum modification 齿顶修改量...gear with addendum modification 变位齿轮...unequai-addendum system 不等齿冠系...chordal addendum 弦线齿冠...
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