本文用日本MT—N_3电子测听仪检查了666名接触噪声的工人,并将每日接触噪声的小时数和每月接触的天数计算成总的工作小时数,然后按每日工作8小时,每周工作6天换算为实际接触噪声的年数。并用国产ND_2型精密声级计测定了作业场所噪声的强度。用实际接触噪声的年数和噪声的强度作为接触噪 In this paper, 666 workers exposed to noise were examined by Japan MT-N_3 electronic audiometer, and the daily noise exposure hours and monthly contact days were calculated as the total number of working hours, and then the working hours per day were 8 hours, 6 working days per week converted into the actual number of years of exposure to noise. And with the domestic ND2-type precision sound level meter to determine the noise intensity of the workplace. With the actual contact with the noise of the years and the intensity of noise as the contact noise