... 代表性取样 representative sampling 周期性取样 periodic sample; periodic sampling 远程放射学 teleradiology ...
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periodic sample functions 周期性样本函数
sample periodic 又称抽样周期
·2,447,543篇论文数据，部分数据来源于NoteExpress
Instead, they are considering gathering information from the vast, centralised databases held by government, such as tax records, benefit databases, electoral lists and school rolls, as well as periodic polling of a sample of the population.
ECONOMIST: The traditional census is dying, and a good thing too
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