- 变速箱 biànsùxiāng gearboxgearbox or transmission system in a vehicle or machine
- 变速器 biànsùqì gearboxa mechanical device or transmission system used to change the speed, torque, or direction of motion in a vehicle or machine
- 变速杆 biànsùgǎn gear leverA lever used to change gears in a motor vehicle or machinery.
- 变速传动 biànsùchuándòng transmissionvariable-speed transmission; to change gear
- 手动变速器 shǒudòngbiànsùqì manual transmissiona vehicle transmission system where the driver manually changes gears using a shift lever and clutch