differential gear box的用法和样例：
- Improvement of Differential Gear Box of Cigarette Paper Compensating in PROTOS 70 Cigarette Making Machine
- The rate of the machine moved up sharply because of changing a big gear box.
- Tthe oil quantity of gear box's lubricating oil.
- The engine acts as the power unit located normally at the front of the car,followed immediately by a cluth,gear box ,propeller shaft,universal joint,differential,back axle,ect.
- A : Yaw is controlled through a differential gear within the transmission.