commutator lug

例句：

1. 1.The commutator lug is crucial for the proper operation of the motor.
   换向器支架对于电机的正确运行至关重要。
2. 2.The engineer carefully inspected the commutator lug to ensure it was functioning properly.
   工程师仔细检查了换向器支架，以确保其正常工作。
3. 3. The commutator lug plays a vital role in preventing wear and tear on the motor.
   换向器支架在防止电机磨损方面起着重要作用。