本文调查了列车段乘务员164人,其中己婚40人,未婚124人,年龄18～37岁,工龄1～15年。选择不接触噪声与振动的女工128人为对照组。两组女工月经初潮年龄均在12～20岁之间,月经周期20～45天。列车员平均每天10小时处于噪声和振动共同作用下工作与生活。火车行驶时产生的噪声最高为 This article investigated 164 train attendants, of whom 40 were married, 124 were unmarried, aged 18 to 37 years, 1 to 15 years of service. 128 women workers who did not touch noise and vibration were selected as the control group. The two groups of women’s menarche age are 12 to 20 years old, the menstrual cycle 20 to 45 days. The average conductor is working and living under the combined effect of noise and vibration for 10 hours a day. The noise generated when the train is traveling is the highest