[电] 扬声系统

1. 广播系统：loudness 响度 | loudspeaker system 广播系统 | loudspeaker 扩音器

2. loudspeaker system的解释

noun

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

Synonym: loudspeakerspeakerspeaker unitspeaker system