black collar axle

例句：

1. 1.The black collar axle is the most important part of the car's engine.
   黑领带轴是汽车发动机最重要的部分。
2. 2. The black collar axle was used in the construction of the new bridge.
   黑领带轴用于新桥的建设。
3. 3. The black collar axle is responsible for transmitting power from the engine to thewheels.
   黑领带轴负责将引擎的动力传递到车轮上。