gear center

例句：

1. 1.The car's engine is located at the gear center.
   汽车的引擎位于齿轮中心。
2. 2.The gear center is where the transmission system connects to the wheels.
   齿轮中心是传动系统连接到车轮的地方。
3. 3. The gear center is responsible for transmitting power from the engine to the wheels.
   齿轮中心负责将发动机的动力传递到车轮。