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1996年10月在郑州召开的第四届全国物理因素职业危害学术大会上，生产性噪声（下简称噪声）危害防治方面的研究题目占了相当大比重。这集中反映了自第三届大会以来的主要成果。在这次大会上，专家们普遍认为，经过近十几年的努力，已基本明确了噪声导致听力损伤的机理和特点，
In October 1996 held in Zhengzhou, the Fourth National Occupational Hazards Physical Conference, the production of noise (hereinafter referred to as noise) research on the prevention and control of hazards accounted for a large proportion. This concentrated on the major achievements since the Third Congress. At this conference, experts generally believe that after nearly a dozen years of hard work, the mechanism and characteristics of noise-induced hearing impairment have been basically clarified.