Benefit index 效益指数 ; 效益指标
index-linked benefit 与指数相连的利益 ; 指数调整法
cost-benefit index 绩效指标
benefit index method 效益指数法
ecologic benefit index 生态效益指数
economic benefit index 经济效益评价指标
Production Benefit Index 生产效益指标
Environmental Benefit Index 环境收益系数
comprehensive benefit index 综合效益指数
Through establishing the separation model for the management benefit of water user association based on regression prediction,the calculation method for the management benefit index of water user association was improved. The management benefit was effectively separated from the overall benefit.
通过建立基于回归预测的用水户协会管理效益分离模型,改进用水户协会管理效益指标的计算方法,将管理效益从总体效益中有效地分离出来,实现了对灌区参与式灌溉管理改革效益的精确评价。
参考来源 - 用水户协会管理效益的分离模型研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Web sites ranging from 50 to 500 pages are best served by Web site indexes, although a Web site can have as few as 20 or 25 pages and still benefit from an index.
拥有50到500网页的网站使用网络索引是最好的，尽管一个网站只有20 - 25个网页，仍然需要编制索引。
Indexes won't help much when the size of your data is small or when the majority of queries issued against your database would generally not benefit from an index.
如果数据大小较小，或者索引对于数据库查询的性能改善帮助不大，则不适合使用函数索引。
A primary index is a unique feature of Teradata's database - it offers the benefit of an index without the traditional overhead associated with an index.
主索引是teradata数据库的惟一特性—在避免索引相关额外开销的情况下提供索引的优势。
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