graded approach

• 分级法,评分法

graded approach的用法和样例：

例句

1. Then, the affecting factors and results are graded according to experts grading method, thus a risk assessment for gas pipeline leakage is achieved.
   根据专家评分法，对危害因素指标和后果进行评分，实现管道工作状态的风险评价。