There isn't a guidance method of evaluating luminous efficacy of light sources on road lighting yet resulted in the problem has not been solved at present.

由于目前国内尚缺乏定量地评价道路照明光源相对光效的指导方法，导致此问题一直悬而未决。

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The standard sources were employed in automatic evaluating, the evaluated point was selected according to its requirements, handled the data in real time and judged the result.

自动检定采用标准源法，按需选择检定点，实时处理其数据并判定结果。

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The results from investigating and evaluating groundwater pollutant sources indicated that waste landfill was one of main pollutant sources.

地下水污染源调查评价研究表明，垃圾填埋堆放场是造成地下水污染的主要污染源之一。

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Search has also replaced the time and energy we once used to find resources with the time-consuming task of evaluating all the sources that are out there.

FORBES: Why Awareness Doesn't Matter Much Anymore