Methods Field survey, occupational health monitoring and occupational health examinations were carried out to analyze and evaluate contact degree of occupational hazards comprehensively.
方法采用现场调查、职业卫生检测及职业健康检查相结合的方法，进行定性定量和职业病危害因素接触水平综合分析评价。
Methods The harmful levels of occupational hazards and the effect of protective measures were evaluated by field occupational health survey, engineering analysis, detection and test.
方法采用现场职业卫生调查、工程分析、检测检验等方法，评价其职业病危害程度和防护措施效果。
Methods the comprehensive evaluation was done by using on-site occupational hazard survey, detection of occupational hazards and occupational health check in the workplace.
方法采用职业卫生学调查、工作场所职业病危害因素现场监测和职业健康检查进行综合评价。
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