... 河流横剖面 transverse river profile 横剖面;横切面 cro ection; cross section 横剖面调查 cross sectional study ...
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Cross-sectional Study 横断面研究 ; 横断研究 ; 横断面调查
Method cluster sampling and cross sectional study.
方法整群抽样,横断面调查。
We conducted a cross-sectional study in Embu, São Paulo, Brazil, as the Brazilian component of a multicountry survey on abuse in the family environment.
我们在巴西圣保罗恩布进行了横断面研究,即家庭滥用体罚多国调查的巴西调查部分。
Conde-Agudelo a, Belizan JM, Lammers C. Maternal-perinatal morbidity and mortality associated with adolescent pregnancy in Latin America: Cross-sectional study.
Conde - Agudelo a, Belizan JM, Lammers C .,《与拉丁美洲少女怀孕有关的孕产-产前发病率和死亡率:截面研究》。
It's a more powerful method than something called a cross-sectional study, and I'll come back in a later lecture and talk about these in more detail, but a cross-sectional study means you're taking a snapshot of a population of people at one time.
这种方法比所谓的横断面研究更加有效,我将在以后的课中,再仔细讨论这个问题,但横断面研究是指,你一次记录下一群人的状况
Well, a cross-sectional study would mean that you'd get a random group of the population and measure them in 1970 and then take another random group five years later and measure them, but it wouldn't be the same people necessarily, it would be different groups of people.
那么,横断面研究就是,1970年你在人群中随意选择一组人,并记录下相关数据,然后,五年后再随意选择一组人记录数据,但这不需要是同一组人,通常是不同的人
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