The cause inducing noise pollution on high grade road, and the noise abatement measures both at home and abroad are introduced. A way to precaution noise given.
介绍了高等级公路噪声污染产生的原因，介绍了国内、外降噪的主要措施，同时提出了防噪声方式。
Conclusion The monitoring and noise-abatement measures in ICU are necessary and effective.
结论对重症监护病房进行噪声监测及降噪干预十分必要，且效果显著。
Conclusion The monitoring and noise-abatement measures in ICU are necessary and effective.
结论对重症监护病房进行噪声监测及降噪干预十分必要，且效果显著。
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