countershaft

n.

副轴，中间轴；

Countershaft
Multi-speed transmission with countershaft gearing
SINGLE SLIDING KEY TYPE COUNTERSHAFT AUTOMATIC TRANSMISSION
Twin countershaft transmission and improved power take-off arrangement therefor
Concept for a 6-speed countershaft transmission for motor vehicles
Multi-speed transmission with countershaft gearing arrangement
Main shaft for a transmission or countershaft for a transmission
The Fuller Family of Twin Countershaft Transmissions — A New Concept for Heavy Duty Service
Method of optimizing vehicle performance based on countershaft acceleration
Light-Weight Design of Constant Velocity Universal Joint Drive Countershaft