Sounds clear, but there is slight machine noise.

音质清晰，但稍有轻微机械噪音。

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Rcording is good but machine noise loses points.

录音功能优良，但其机械噪音导致了评测失分。

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The extraction and application of principle component representations were studied for machine noise monitoring.

研究了设备噪声监测中主分量特征表示的提取及应用。

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But on Monday, the white noise machine was activated without the prior knowledge of the judge or the courtroom security officer.

BBC: Guantanamo trials: Judge orders end to secret censor

Using eyeshades or room darkening curtains or blinds and a white noise machine may help you sleep better when you want to.

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Spectators watch the proceedings behind soundproof glass, and receive audio on a 40-second delay so that a court security officer can switch on a white noise machine while classified information is being discussed.

BBC: Guantanamo trials: Judge orders end to secret censor