采用直接抽样法和倒易方法计算探测器的通量，得到了一致的结果。
The direct sampling and the reciprocity method are applied to the calculation of the flux measured by a detector.
作者用随机抽样的方法研究中国的老年人，发现家庭耐用消费品和家庭水电费都直接和间接影响健康状况。
Using a random sample of Chinese elderly, we find that asset holding in the form of Household durables and Household utilities has both direct and indirect effects on health status.
方法随机抽样采集城乡幼儿新鲜粪便，用直接涂片法和饱和盐水浮聚法检查虫卵。
Methods Faecal samples were randomly collected from infantsw and helminth eggs were detected.
应用推荐