其它利用电磁铁的装置有粒子加速器、电话听筒、扬声器和电视。
Other devices that utilize electromagnets include particle accelerators, telephone receivers, loudspeakers, and televisions.
电枢：电磁装置的移动部分，如继电器，蜂音器或扬声器。
The moving part of an electromagnetic device such as a relay, buzzer, or loudspeaker.
电枢：电磁装置的移动部分，如继电器，蜂音器或扬声器。
The moving part of an electromagnetic device such as a relay, buzzer, or loudspeaker.
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