[12]周学文，大气激光通信系统中的时域均衡研究[D]。西安理工大学， 2006。
ZHOU X W. Research of adaptive equalization in atmosphere communication system[D]. Xi'an University of Technology, 2006.
在为《内科学文献》做的最新调查中，科学家对153位男士和女士做了为期2周的追踪，并记录下他们的睡眠质量和持续时间。
In a recent study for the Archives of Internal Medicine, scientists followed 153 men and women for two weeks, keeping track of their quality and duration of sleep.
在为《内科学文献》做的最新调查中，科学家对153位男士和女士做了为期2周的追踪，并记录下他们的睡眠质量和持续时间。
In a recent study for the Archives of Internal Medicine, scientists followed 153 men and women for two weeks, keeping track of their quality and duration of sleep.
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