标 准 编 号：DIN 3993-3-1981 简体中文标题：渐开线啮合圆柱内齿轮副的几何设计:齿顶高变位系数测定图 繁体中文标题：渐开线啮合圆柱内齿轮副的几何设计:齿顶高变位系数测定图 English Name：Geometrical design of cylindrical internal involute gear pairs; Diagrams for the determination of addendum modification coefficients German Name: Geometrische Auslegung von zylindrischen Innenradpaaren
