渐开线零齿差内啮合齿轮副
involutes internal gear with zero-tooth-difference mechanism
内啮合渐开线齿轮泵
Internal involute gear pump
小齿轮轮齿啮合
pinion gear tooth contact
小齿轮轮齿啮合型式
pinion tooth contact pattern
齿轮渐开线及螺旋角测量仪
involute and helix measuring instrument
渐开线齿轮传动
involute gear transmission
渐开线齿轮的干涉
interference of involute gears
渐开线齿轮铣刀
involute gear milling cutter
involute gear cutter