Moreover, it can be used to assess economic performance both across countries and over time.
此外，它既可以用于对比国与国之间的经济业绩，也可以用于评估某个国家在某个时间段的经济业绩。
The Jones-Klenow measure can also assess an economy's performance over time.
琼斯和克勒诺提出的方法也可以评估某个经济体在某个时间段的经济业绩。
They can also be used to assess the performance of policies over time.
同时还能对政策经过一段时间后的表现作出评价。
Objective To assess the air pollution over a sewage treatment plant.
目的了解某污水处理厂空气污染状况。
Objective To assess the air pollution over a sewage treatment plant.
目的了解某污水处理厂空气污染状况。
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