This paper based on literature review, avoiding the defect of dichotomy method, developing the family involvement index system.
本文在文献梳理和理论分析的基础上，避开二分法的缺陷，设计开发了家族涉入指数系统。
2
Developmental defect of enamel and dental caries in 1074 primary school children were investigated using the simplified DDE index.
本研究采用简化的DDE指数，对1074名城乡学龄前儿童进行乳牙釉质发育缺陷和龋齿的现况调查。
3
The essay narrates briefly the traditional definition and the unreasonableness of process capability index, and the source is that the definition of shift coefficient has defect.