Trials of high doses of vitamin C administered therapeutically, starting after the onset of symptoms, showed no consistent effect on either duration or severity of common cold symptoms.
至于针对治疗性服用维生素C的研究则显示，在感冒症状出现后才开始服用者，对感冒持续的时间或严重程度并没有一致的结果。
Vitamin C helps to reduce the severity and duration of colds.
维生素C有助于减少感冒的严重程度和持续时间。
The decay rate of the C-14 sample with its long half-life should be nearly constant during the short duration of the experiment.
在一个短实验周期里，具有较长半衰期的C 14样品的衰变速率应该是一个近似常数。
Comparing with female patients with hyperuricemia male patients were 6 yrs younger in age and 12 months shorter in diabetes duration with lower BMI and HDL-C higher WHR and TG.
与高尿酸血症血症女性患者相比，男性患者的年龄要年轻6岁，糖尿病的病程更短(比女性短12个月)，且BMI和高密度脂蛋白(HDL - C)水平较低，WHR和甘油三酯(TG)水平较高。
The authors conducted a series of experiments and testings on the application of PS? to T/C blended fabric and then optimized the process parameters such as dosage, curing temperature and duration.
本文对PS—1在涤棉漂白织物的应用上作了具体的试验及测试，优选了用量、焙烘温度和焙烘时间等工艺参数。
C. we need to estimate resource but we do not need to estimate duration. duration.
我们需要估算资源但是我们不需估算历时。
C. we need to estimate resource but we do not need to estimate duration. duration.
我们需要估算资源但是我们不需估算历时。
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