Discussed the relationship between the altitude accuracy observed and accuracy of celestial positioning based on the optimal estimating method.
论述了基于最优估计理论的天文定位方法中天体高度测量精度与定位精度的关系。
Results Actual use of the method for estimating sample size and the relationship between effect factors and sample size were illustrated by a example of case control family study of liver cancer.
结果用实例说明了病例对照家系设计中样本含量估计方法的应用与影响因素和样本含量的关系。
The truth of juice is one of the most important standard in estimating the quality of juice. It also has the direct relationship with the profit of consumers.
果汁饮料的真实性是评价果汁饮料质量好坏的重要指标之一，也直接关系到消费者的切身利益。
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