loudspeaker

The loudspeaker announced each airplane as it landed at the airport.

每架飞机在机场一着陆, 音器就发出通告。

There is a loudspeaker in a radio.

收音机里有个喇叭。

SASHED candidates standing on car roofs, their voices crackling through loudspeakers.

候选人从车顶的窗口探出头来，音器下他的嗓音略微嘈杂。

Abstract: A network model was developed to analyze a piezoelectric source driving a resonantor to investigate the coupling of the piezoelectric loudspeaker with a thermoacoustic resonantor.

为压电驱动器与热声谐振腔间的耦合特性，建立压电驱动系统的网络模拟模型。

The loudspeakers blared the speech repeatedly.

扬声器里反复大声地播送那篇演讲。