名词
中文翻译：Unknown
同义词：
['noise figure meter', 'noise figure meter', 'noise figure meter', 'noise figure meter']
例句：
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1. This noise-figure meter is used to measure the noise level in a room.
这个噪声系数计用于测量房间的噪声水平。
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2. The noise-figure meter showed that the air conditioner was not working properly.
噪声系数计显示空调工作不正常。
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3. The noise-figure meter helps us to understand the quality of the sound we are hearing.
噪声系数计帮助我们理解我们正在听到的声音的质量。