齿轮切线千分尺
gear tooth tangent micrometer
螺旋锥齿轮切削机
spiral bevel gear cutting machine
斜齿轮切齿机
bevel gear cutting machine
锥齿轮切削机床
bevel gear cutting machine
齿轮副切向综合误差
bear pair tangential integrated error
滚切外齿轮
Roller spur cylinder gear
切割机行星齿轮减速器
cutter planetary gear reducer
齿轮轮齿接触印痕
gear tooth contact pattern