The noise pollution survey revealed a rather spurring and possibly amusing old fashioned source of noise.

这个有关噪音的污染调查还揭示了一种出人意外而同时可能会引人意外而同时可能会引人发笑的老式噪音源.

新概念英语第三册

Pollution survey of 10 carbonyl compounds in air of 6 trains was conducted.

调查评价了6辆列车车厢空气中醛酮的污染状况.

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