乘务员是铁路的特殊工种,昼夜轮流值乘在运行的车厢中,接触列车噪声和振动,本次做了305名内燃机车男司机和旅客列车男、女乘务员的心电图检查。以观察噪声作业对人体心脏功能的影响。一:随机选择健康男、女铁路工人为观察对象男工年龄21～55岁,女工21～50岁,每 Flight attendant is a special type of railway, day and night by value in the running compartment, exposure to train noise and vibration, this made 305 diesel locomotive man driver and passenger train male and female flight attendants ECG. To observe the impact of noise on human heart function. A: random selection of healthy men and women railway workers for the observation object Male workers aged 21 to 55 years, women workers 21 to 50 years old, each