RESULTS There were 12 dogs surviving until prearranged observation period.

结果：实验犬12只均存活至预定观察期。

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But no correlation was found between N2O fluxes and soil moisture during the observation period.

观测期间玉米田、大豆田、棉花田土壤n2o排放通量与土壤水分相关性均不显著。

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During the observation period, declines in HDL were found to be associated with corresponding declines in memory.

在观察期中发现，HDL水平的下降与相应的记忆力衰退呈相关性。

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The equipment measured twenty slow earthquakes during the five-year observation period.

VOA: special.2009.07.07

If you slide your observation period forward or back, those bad returns often disappear fast.

FORBES: Lost Decade, Found!

During the observation period, 1, 156 patients (28.4 percent) died, with 879 (76.0 percent) of these deaths related to cardiovascular disease.

FORBES: Longer Warfarin Therapy After Bioprosthetic Aortic Valve Replacement May Be Beneficial

But right after his observation period was up, before Weaver could retrieve the model, another car moved to the right to hit the animal as he stood less than 20 feet away.

MSN: College student's turtle project takes dark twist