进行受精前用显微镜检查精子样本。
The sperm sample is checked under the microscope before insemination is carried out.
有感冒症状主诉的被检旅客已经送交医生并提取了拭子样本进行化验。
The people tested had gone to general practitioners with complaints of flu-like symptoms and had swabs taken for testing.
在分析财富的积累，我们限制一个子样本，提供完整的金融和人口变量统计数据。
In analyzing wealth accumulation, we limit attention to the subsample that supplied complete data on all financial and demographic variables of interest.
研究结果表明，不论是基于总样本还是各个子样本，信息对市场波动性均有统计上显著的影响；
The results indicate that the information statistically significantly influenced the market volatility whether based on the whole sample or each sub-sample.
对简单随机不放回抽样，在总体非敏感属性个体比例未知的情况下，给出了两个子样本容量的最优配置。
Under simple random sampling scheme without replacement and unknown proportion of population possessing neutral attribute, the optimal allocation of sizes of two sub-samples is given.
该研究仅对子样本的146名患者进行考察。他们在10周期治疗内符合缓和标准，没有精神病症状并且在初始阶段有治疗史。
This study examined only the subsample of 146 patients who reached remission within 10 sessions, had no psychotic features, and provided treatment history at baseline.
再次，我们以执行旧会计准则的样本一作为参照，检验了执行新会计准则的样本二以及两个子样本在首次公丌发行前的盈余管理程度是否有差异。
Thirdly, we test whether there are differences in the degree of earnings management between Sample Two, sub-sample one, sub-sample two and Sample One.
详细研究讨论了在系统设计中必须面对的电子样本图片文件的组织和管理、数据库设计的方法和负载均衡的规划这三个关键课题，并分别给出了解决方案。
In view of system developing, this thesis gives a minute study in the management of electronic sample's file, in the method of database designing and in the plan of load balancing.
重权数方法与重抽样方法类似，也是利用计算机的优势通过重复获得大量不同的子样本的重权数估计目标参数的估计量和方差估计量，是一种稳健、通用、有效的方差估计方法。
Replicate weight, which is similar with replicated sample method, gets a lot of replicated weights to obtain the estimators by computer, it is also a robust, common and effective method.
重权数方法与重抽样方法类似，也是利用计算机的优势通过重复获得大量不同的子样本的重权数估计目标参数的估计量和方差估计量，是一种稳健、通用、有效的方差估计方法。
Replicate weight, which is similar with replicated sample method, gets a lot of replicated weights to obtain the estimators by computer, it is also a robust, common and effective method.
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