Rules describe how clean data should appear, and are a powerful way to monitor the quality of your data.

规则描述了干净数据应该如何出现，以及一个监测数据质量的强大工具。

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The researchers noted that cognitive issues identified during the prospective study appear to be associated with hypoxia rather than with the quality and duration of sleep.

研究人员指出，在前瞻性研究中被证明认知障碍的发生似乎是与缺氧有关，而与睡眠质量和时间无关。

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There are all sorts of ways to define star quality, but perhaps the best is that it's the ability to appear completely natural in completely unnatural situations.

有很多种方式定义明星气质，但是或许最好的表现是在完全失常的环境中镇定自若的能力。

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That, in combination with the not overly large size means that, while there might be more pixel-dense displays around, what you're getting on the Desire X doesn't appear to be low-quality, or second-rate.

ENGADGET: HTC Desire X review: one last hurrah for a former flagship?

Like the Anywhere app, content doesn't appear in HD, but the quality will almost surely beat your airline's in-flight entertainment system.

ENGADGET

Another factor lubricating the path to physician employment is generational: Doctors now in training appear willing to forsake income for a better quality of life and are less interested in the entrepreneurship required to run a private practice.

WSJ: David Leffell: The Doctor's Office as Union Shop