对评价的四个阶段：危害鉴定， 剂量-反应关系评估、暴露评估、风险评定等所涉及的基本概念和计算公式作了较为详尽的解释。

The main terms and formulas involved in the processing assessment -which include hazard identification, dose-response assessment, exposure assessment, risk characterization are interpretated as -well.

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