sampled population 中文意思是什麼
sampled population
解釋
被抽樣總體- sampled : 取樣的
- population : n. 1. 人口；人口總數；全體居民；人口的聚居。2. 物的全體[總數]；【生物學】蟲口；種群（量）；群體；族，組，個數；【統計學】對象總體，全域。3. 【物理學】布居；密度。4. 〈罕用語〉殖民。
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A total of five populations of dysosma versipellis were sampled from mt. emei in sichuan province ( sc ), mt. shengnongjia hubei in province ( hb ), mt. tianping in hunan province ( hn ), pengze in jiangxi province ( jx ), mt. tiantangzhai in anhui pprovince ( ah ), and a population of dysosma pleiantha from mt. tianmu in the rangzi river drainage area of zhejiang province ( zj )
本文在對瀕危植物八角蓮資源廣泛調查的基礎上，有代表性地選取長江中下游四川峨眉山（ sc ） 、湖北神農架（ hb ） 、湖南天平山（ hn ） 、江西彭澤縣（ jx ） 、安徽天堂寨（ ah ） 5個種群和浙江天目山（ zj ）六角蓮一個種群。 -
It was sampled from one population in zhejiang province. the studies were carried out by life history analysis, breeding system analysis, morphological analysis, allozyme analysis and issr analysis
生物學特性主要研究了八角蓮的生活史和繁育特性，而遺傳多樣性則從等位酶和issr兩種分子水平分別進行了研究。 -
The method for retaining sampled units in successive sampling survey for changed probability of selection is introduced. for pps sampling design, a model - design unbiased predictor for the total of a variable for the target population is proposed, and the optimum matching ratio for the predictor under the assumption of unchanged population is calculated. for rhc sampling design, the equation that the optimum matching ration satisfies is given
介紹了連續抽樣中概率發生變化時保留樣本的方法。對于有放回的pps抽樣，在假設的超總體模型之下提出了總體變量總值的模型設計無偏預報量，並計算了總體不變時保留樣本的最優匹配比。對于無放回的rhc抽樣，給出了最優匹配比滿足的方程。
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