道路声屏障
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over-road noise barrier 高架式隔音屏障
road noise-deafening barrier 道路隔声屏障
road noise barrier
道路隔音屏障
以上为机器翻译结果，长、整句建议使用 人工翻译 。
They are calling on the Highways Agency to install a new road surface and improve the sound barrier to help reduce the levels of noise.
BBC: Gloucester estate residents complain about M5 noise
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