名词
中文翻译：Unknown
同义词：
['Compound Receiver', 'Compound Microphone', 'Compound Speaker']
例句：
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1. The compoundloudspeaker is used in concert halls to amplify the sound.
复合式扬声器被用于音乐厅，用来放大声音。
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2. In the recording studio, the engineer uses a compound loudspeaker to mix different tracks.
在录音棚里，工程师使用复合式扬声器来混合不同的音轨。
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3. The new model of the compound loudspeaker has been released, and it is expected to be very popular.
新型复合式扬声器已经发布，预计将非常受欢迎。