名词
中文翻译：回响计
同义词：
['echo meter', 'reverberation gauge', 'echo sound level meter']
例句：
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1. The engineer used a reverberation meter to measure the room's acoustic properties.
工程师使用回响计来测量房间的声学属性。
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2.The reverberation meter was used to test the new building's soundproofing effectiveness.
回响计被用来测试新建筑的隔音效果。
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3. The reverberation meter indicated that the room had an acceptable level of noise.
回响计显示房间的噪音水平是可接受的。