There is a loudspeaker in a radio.
收
机里有个喇
。
, 扬声, 喇
, 麦克风;;, 放大;用扩;;,变频;
;的;There is a loudspeaker in a radio.
收机里有个喇。
SASHED candidates standing on car roofs, their voices crackling through loudspeakers.
人从车顶的窗口探出头来，扩
下他的嗓略微嘈杂。
The loudspeaker announced each airplane as it landed at the airport.
每架飞机在机场一着陆, 扩就发出通告。
The loudspeakers blared the speech repeatedly.
扬声里反复大声地播送那篇演讲。
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.
为了研究压电驱动与热声谐振腔间的耦合特性，建立了压电驱动系统的网络模拟模型。
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