现代城市中的低频噪声已越来越引起人们的重视,低频噪声能够长距离奔袭和穿墙透壁直入人耳。
Now the low frequency noise has been paid more attention in modern city. It can run with long distance and penetrate through wall into human ears.
现代城市中的低频噪声已越来越引起人们的重视,低频噪声能够长距离奔袭和穿墙透壁直入人耳。
Now the low frequency noise has been paid more attention in modern city. It can run with long distance and penetrate through wall into human ears.
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