gearbox: 齿轮箱
piston 活塞
reciprocating piston: 往复活塞
clutch: 离合器
shaft: 轴
crankshaft: 曲轴
main shaft: 主轴
dog clutch: 爪式离合器
gearbox: 齿轮箱
piston 活塞
reciprocating piston: 往复活塞
clutch: 离合器
shaft: 轴
crankshaft: 曲轴
main shaft: 主轴
dog clutch: 爪式离合器
Why do we need gearbox, in order to change SPEED
Top Gear = FASTEST
This is a good photo of the transmission box