How do you perform the pest control, and do you have a regular evaluation on the efficacy of the control measures?
您是怎样进行虫鼠害控制的？您对控制措施的有效性定期进行评估吗？
This article utilizes the systematical safety engineering project in principle, study on the method and principle of the safe control and the concrete measures on the basis of safe ratings evaluation.
文章运用安全系统工程的有关理论和方法，在安全分级评价的基础上进行安全控制的方法、原则以及具体措施的探讨。
This review is about the stress origins, stress effects, stress evaluation, measures of prevention and control of occupational stress of the medical and hygienic staffs.
该文将对医务卫生人员的职业性应激的应激源、应激效应、应激评价和预防控制措施等方面作一综述。
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