直齿伞齿轮刨刀
straight bevel gear cutter
人字齿轮刨齿机
herringbone gearshaping machine
直齿锥齿轮刨齿机
straight bevel gear generator
直齿-锥齿轮刨齿机
straight and conical gear shaper
主汽轮机齿轮机组
main steam turbine gear unit
锥齿轮刨齿机
spur bevel gear generator
直齿伞齿轮
straight bevel gear
spur bevel gear
straight toothed bevel gear
straight-teeth bevel gear
齿轮轮齿接触印痕
gear tooth contact pattern