二级展开式直齿齿轮减速器
2-grade deceleration straight-tooth gear box
小模数锥柄插齿直齿刀
small module taper shafted straight tooth slotting cutter
圆柱直齿齿轮
spur gear
cylindric straight-tooth gear
斜齿扭带
bevel-toothed twisting belt
twisted strip with oblique teeth
标准渐开线直齿轮
standard Involute spur gear
标准渐开线直齿圆柱齿轮
standard involute cylinder gear
垂直带谱
Altitudinal zonation
spectrum of altitudinal belts
altitudinal spectrums
粗齿直柄立铣刀
parallel shank endmill with coarse teeth
大模数圆柱直齿轮
spur gear with big modulus