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。

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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。

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Drawing meaningful comparisons between images of the same person taken over time as a way to detect problems, assess treatment effectiveness, and monitor progression of disease.

在同一个人的图形之间绘制有意义的比较关系，作为发现问题，评估治疗效力和监控疾病进展的一种方式。

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Online assessments and community-based support will allow the over-50s to assess and improve their health, she said.

BBC: Mouse and laptop

To assess emotional over-involvement, the researchers looked at the extent to which family life centred on the child, and whether the mother was happy to leave her child with others and whether she has interests which are not related to the child.

BBC: NEWS | Health | Donor embryo children 'not told'

In the past, researchers have used data from planes that fly criss-crossing paths over Greenland to assess the extent of its ice sheets.

ECONOMIST: Climate change (II)