ecological effect index

• 生态效应指数

ecological effect index的用法和样例：

例句

1. The effective length of carbon chain of alkanes was built up by using the polarizability effective index.
   利用极化效应指数，构造了链烷烃的有效碳链长度。
2. ObjectiveTo introduce the method of standardized effect size to evaluate effect of health education.
   目的介绍用标准化效应指数评价健康教育效果的方法。