When you do add an index to a table to cut the CPU cost and run time of a query, you want to get the most out of that new index as practically possible.

如果您的确要向一个表添加一个索引来削减查询的 CPU 成本和运行时间，您可能会想在实际情况允许的条件下尽可能多地利用那个新索引。

youdao

This paper USES time and cost as the assessment index to make quantity appraise of the process plan.

本文以工艺方案的时间与成本作为评价指标，对工艺方案进行了定量评价。

youdao

In order to select optimum route, thinking about the factors which are time of transfers, cost of running and times of transfers, a compound evaluation index model is obtained.

为了选择最优路径，综合考虑出行时间、出行费用和换乘次数等因素，给出一个综合评价指数模型，并用算例对算法和模型的可行性进行验证。

youdao