系统样本

系统抽样（法）

systematical───adj.有系统的；分类学的；经常的

systematically───adv.有系统地；有组织地

systematic error───系统误差

systematic errors───系统误差

systematic review───系统的检查；系统的回顾

systematician───系统学家

systematicians───系统学家

To find out, you'd have to take a systematic and unbiased sample – perhaps a whole week's worth of stories – and then check the evidence behind every claim.───为了找到答案，你就必须采取系统和公正的样本——也许是值得花一整个星期去探究的案例——然后去查每一项主张后的证据。

By means of systematic sample along the Guanjiagou Formation section in Wenxian County, Gansu Province, many Micropalaeoflora fossils are collected, and identified as 16 genera and 28 species.───通过对甘肃省文县关家沟组剖面的系统采样，获得大量微古植物化石，鉴定出16个属28个种。

Methods Through the systematic method to sample papers and four-year results entered into the computer by using software for analysis.───方法通过等距抽样方法将样本试卷及四个年级的成绩输入电脑，利用分析软件进行分析。

The suggested estimators have usually higher precision compared with the commonly used systematic sample mean.