齿轮齿条机构
gear rack mechanism
Rack and Spur Gear Mechanism
Organization of Gear Wheel and Rack
Pinion and Rack
齿轮齿圈径向跳动误差
Diameter Runout of Pitch Circle in Gear
齿轮齿面接触强度
contact strength between gear and tooth face
齿轮齿倒角机
gear tooth chamfering machine
tooth chamfering machine