According to the analysis of existing evaluation and grading practice for fabric pilling, it is concluded that the core of evaluation is information acquiring and comparison.
分析现有织物起毛起球等级的评定方法，提出评定工作的实质就是信息获取和比较。
2
The grade was combined with the prognosis in the statistical analysis to check the feasibility and the rationality of the combined grading method.
将联合评分值与病人预后相结合，进行统计学分析，检验联合评分法是否合理。
3
The article carries on the comprehensive analysis from the mineral grading aspect, elaborates its influence of the function of highway, and puts forward the prevention measures.