For each production process, the hazard distribution and risk varies with the different articles used, technological conditions adopted, and products produced.
因所使用物品、所采取工艺条件和所生产产品的不同，其危险分布及危险性亦有所区别。
The media hazards, process hazard and installation hazard are analyzed in this paper. The technological measures of safe control for maleic anhydride are also put forward.
对马来酸酐生产过程中的介质危险、过程危险及装置危险进行了分析，提出了马来酸酐装置安全控制技术措施。
The rule of hazard analysis and critical control point(HACCP) was used in the research program. Field researches of technological process and working environment in coal-cleaning plants were surveyed.
运用危害分析与关键控制点（H ACCP）的原理，对选煤厂的生产工艺、作业环境进行现场调研。
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