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1·The observation period was 12 weeks.

服药观察周期为12周。

2·There was no implant failure in the observation period.

在观察期间无种植体失败。

3·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。

4·The ECG abnormality was not found in the control group during the observation period.

对照组在监测过程中未发现ECG异常。

5·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。

6·Treatment was carried out randomly and double-blindly with the observation period of 6 hr in each case.

按随机双盲原则进行治疗，每个病例的用药观察期为6小时。

7·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。

8·Observation period was 24 months to compare the differences of patients with chronic renal failure in two groups.

观察期限24个月，比较两组患者慢性肾衰竭进展的差异。

9·If the observation period is counted by millimicrosecond, a difference in a second would turn out to be a ridiculous joke.

例如《心灵学》这本书当中列举的，一秒和一毫微秒之间的差别倍值是九亿四千六百零八万倍。

10·Blood gas analysis was made and serum level of cholesterol and triglyceride were measured before and after the observation period.

在实验前和结束时分别作血脂测定和动脉血气分析。