loudspeaker

扬声器; 喇叭

loudspeaker

喇叭，扩音器

There is a loudspeaker in a radio.

（亦作： speaker）

loudspeaker

扩音器, 喇叭

loudspeaker

a device for converting audio-frequency signals into the equivalent sound waves by means of a vibrating conical diaphragm

Sometimes shortened to speaker

loudspeaker

1. electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance

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