求翻译：在上述危险分析的基础上，划分评价单元，根据评价目的和评价对象的复杂程度选择具体的一种或多种评价方法，对事故发生的可能性和严重程度进行定性或定量评价，在此基础上进行危险性分级，以确定管理的重点。是什么意思？

Defined on the basis of the above risk analysis, evaluation units, according to the evaluation purpose and evaluation of the complexity of the object to select the specific one or more evaluation methods, qualitative or quantitative evaluation of the likelihood and severity of the accident, on this

In the above on the basis of risk analysis and assessment unit based on the evaluation purpose, evaluation and the complexity of the objects in a selection of specific or multiple evaluation methods for the accident, the probability of occurrence and the severity of a qualitative or quantitative eva

In above hazard analysis foundation, division appraisal unit, according to appraisal goal and appraisal object complex degree choice concrete one kind of or many kinds of assessment method, has the possibility and the serious degree to the accident carries on qualitative or the quantitative evaluati

Risk analysis on the basis of the above, dividing the evaluation unit, based on the purposes and objects for evaluation of complexity of selecting one or more of the specific assessment methods, on the occurrence of accidents and the possibility of qualitative or quantitative assessment of the exten

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