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1. The commutator modulator is a critical component in the operation of electric motors.
电动机调制器是电机运行的关键部件。
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2. The engineer designed the commutator modulator to improve efficiency and reduce noise.
工程师设计了电动机调制器，以提高效率并减少噪音。
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3. The commutator modulator plays a crucial role in maintaining the proper functioning of the motor.
电动机调制器在保持电机正常工作方面起着关键作用。