无级变速装置 stepless speed changes devices
行星轮变速装置 planetary speed changing devices
自动变速装置 [机] Automatic transmission
手动变速装置 manual gear shifting
皮带变速装置 belt speeder
伞齿轮变速装置 bevel wheel change gear
变速齿轮变速装置 speed gear ; speed change gear
齿轮变速装置 gear changing arrangement ; speed change gears
锥齿轮变速装置 bevel wheel change gear
变速装置的传动效率将影响汽车的经济性和动力性。
Efficiency of a transmission can effect the economy and performance characteristics of a vehicle.
本发明提供一种小型且耐用性高的可变速的牵引传动变速装置。
There is provided a compact and highly durable variable-speed traction drive transmission device.
单速自行车是指没有变速装置的自行车，只适合短途的休闲旅游。
Single-speed cycles-that is bikes with no gears, are really only suited to short, casual rides.
应用推荐