... kinetic noise 释义：动力噪声 noise measuring point 释义：噪声测试点 noise pollution level 释义：噪声污染级 ...
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measuring noise standard point 噪声的标准测点
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In the same measuring point, the reduction effect to the noise with high frequency was significant near by the surface.
同一测点，不同高度时，近地面处高频交通噪声减弱效果明显；
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