实验结果表明，该方法能很好地通过虫食菜叶的几何特征识别害虫种类，为科学防治和害虫危害程度评价提供科学依据。

The results show that the method is good at recognizing the pest species by the geometric feature of eaten leaves by pests, and give a scientific evaluation for the leaf's harm degree.

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采用类比法和检查表法对项目中可能存在的职业病危害因素进行识别分析、定性和定量评价。

Methods Analogical analysis and checklists were used to identify potential hazards, and make qualitative and quantitative evaluation.

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