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噪声的安全标准
噪声对人体健康的危害和环境的污染是多方面的,但总的说来可以分为两大类:一类是声级较高的噪声,可能引起听力损伤以及神经系统和心血管系统等方面的疾病, 另一类是一般声级的噪声,可能引起人们的烦恼,破坏正常的生活环境。将噪声控制在一定水平上所制定的标准称安全标准
expl.
safety standard of noise
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