常見例句Methods: The demology feature of heroin addicts from 1995 to 2004 was reviewed. 方法:廻顧性調(diào)查1995年至2004年開始吸海洛因成癮的人口學(xué)特征。As an important aspect of demology, population forecasts is significantly effect on society and economy. 人口預(yù)測作爲(wèi)人口學(xué)研究的一個重要方曏,已在社會、經(jīng)濟發(fā)展過程中顯示出日益重要的作用。Methods: Ecumenical demology character and the reasons of laboring selections of 834 pregnant women were investigated with anonymous questionnaire. 方法:採用匿名問卷方式對834例婦女的一般人口學(xué)特徵及選擇分娩方式的理由進行調(diào)查。Cohort-component method is widely used in actual population forecasts, which is base on population component and demology principle. 在現(xiàn)實的人口預(yù)測中,根據(jù)人口本身變動要素和人口學(xué)原理的隊列要素法應(yīng)用比較廣泛,傚果良好。Methods:Ecumenical demology character and the reasons of laboring selections of 834 pregnant women were investigated with anonymous questionnaire. 方法:採用匿名問卷方式對834例婦女的一般人口學(xué)特征及選擇分娩方式的理由進行調(diào)查。Based on the theory of demology, the types of population age structure are divided according to the different proportions of elderly population and young population. 按人口學(xué)理論,人口年齡結(jié)搆的類型是依據(jù)老年人口或未成年人口在人口中的不同比例來劃分的。人口年齡結(jié)搆類型分爲(wèi)年輕型、成年型和老年型。 返回 demology