base population 中文意思是什麼

base population 解釋
基本群體
  • base : n 1 基底，基，根基，底座；底層，底子；（紀念碑等的）基址；（山）麓。2 【軍事】基地，根據地。3 根...
  • 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。
  1. The pollution problems of the rivers and streams in that region have accordingly improved considerably in the past decade. however, as the base flow of local rivers and streams is generally small, their assimilative capacity is therefore low. this, coupled with the continued development and hence population growth in the river catchments, as well as the lack of maintenance of many private septic tank systems, has caused the water quality of some rivers and streams in the northwest new territories to remain unsatisfactory

    而溪流的污染情況在過去的十年間亦因此而有所改善，但由於本地河溪的流速相當慢，河流的自凈能力相對偏低，而河溪的周邊不斷發展，人口持續增加，加上部分私人的化糞池系統欠缺打理，未能有效運作，所以新界西北仍有部份河溪水質未如理想。
  2. Rapd ( random amplified polymorphic dna ) technique was used to study the genetic structure and genetic differentiation of the natural population and the hatchery stock of chlamys farreri. amplifications with 20 10 - base primers under predetermined optimal reaction yielded 153 reproducible amplified fragments ranging from 200 to 3000bp. the mean proportions of polymorphic amplified fragments of natural population and the hatchery stock were 73. 2 % and 70. 6 % respectively, and the mean hetreozygosities of them were 0. 27 and 0. 26 respectively

    在對20個野生櫛孔扇貝和20個養殖櫛孔扇貝的基因組dna的檢測中， 20個隨機引物共擴增出153條清晰可分辨的dna片段，片段大小在200 3000bp之間，其中野生種群和養殖群體多態性片段分別為112和108條，多態位點比例分別為73 . 2 %和70 . 6 % ，雜合度分別為0 . 27和0 . 26 。
  3. Due to china ' s huge population base, the absolute increment of population will center around 10 million people annually in the coming years, and it is estimated to hit a peak of 1. 6 billion around 2035 and a zero growth might follow then

    由於中國人口基數過于巨大，中國人口增長的絕對值，在未來一些年份內，仍將保持在每年1千萬左右，預計到2035年前後，中國人口將達到16億峰值，至此，中國人口才將可能實現零增長。
  4. We fist concisely summarize the indicators and index systems of the asd at home and abroad to inforce the base on which we can bring forth new idea in index system of easd in chapter 2. secondly, in chapter 3 systematical analysis is made on the conception and denotation of asd that includes populational, economic, social, resources, and environmental factors. then we draw an initial generalization and conclusion of the theoretical foundation of the asd : the theory of population carrying capacity, the theory of ecological economic, and the theory of system control

    論文的第二章對農業可持續發展評估研究現狀的綜述，追溯評估指標體系的產生和研究進展，考察現有評估指標體系的長處和不足，為農業可持續發展評估指標體系的創新研究夯實基礎；論文的第三章系統分析農業可持續發展的內涵及影響因素，對持續農業的概念和內涵進行系統闡述，對影響農業發展的人口、經濟、社會、資源、環境五大因素進行分析，並初步歸納了農業發展可持續性的人口承載力、生態經濟、系統控制等相關理論，從而更準確地把握農業可持續發展的內涵，為評估指標體系的建模奠定良好的基礎。
  5. Base on the data collected from the field investigations, we analyzed the static life table, age structure, spatial distribution patterns of the populations of e. chloranthoides. we further studied the intraspecific competitions within the species and the interspecific competitions between the species and other concomitant species in the communities. with the helps of the logistic equation, leslie ' s matrix and the average moving law method we simulated and estimated the population dynamics of this endangered plant species

    本研究以縉雲衛矛為研究對象，通過對三個種群的野外調查，研究和分析了縉雲衛矛的種群年齡結構、種群空間分佈格局及種內和種間的競爭關系，並利用logistic方程、 leslie矩陣及移動平均法模擬和預測了三個種群的數量和結構動態，在此基礎上分析了造成縉雲衛矛瀕危的原因，提出了相應的保護措施，旨在為縉雲衛矛的保護提供理論依據。
  6. It deals with our country ' s situation, the present of the old aged population, the measure to carry the old aged political socialization. it considers that is the economic base to safeguard the old people ' s lawful interests, to solve their living difficulties, the community is the principal way to advance the old aged political socialization ; relaying the community to arouse the masses to help respect and love the old people is the social base, to strengthen the management to ensure the funds throwing is the key question, to train old aged personnel is the main assortment, to arouse the enthusiasm of the masses and the old people is the good measure, to promote the socialization must be helped by the public opinion, the first to built the community management system to help the old people with their life, the second is to organize the community ' s cultural and physical activities, the third is to help the old people to resist the feudalism

    認為：維護老齡人口的合法權益，解決他們生活中的實際問題，是促進老齡人口政治社會化的經濟基礎；社區是促進老齡人口政治社會化的主要通道和平臺；依託社區，發動城市居民參加志願者助老服務隊伍，營造尊老敬老氛圍，是促進老齡人口政治社會化的社會基礎；加大監管力度，確保資金投入的效果，是促進老齡人口政治社會化的關鍵環節；開展系統的專業培訓，提高老齡工作隊伍素質，是促進老齡人口政治社會化的重要保證；調動社會各方力量以及老年人自身的積極性，廣泛參與和支持，是促進城市老齡人口政治社會化的重要措施；促進老齡人口政治社會化，要加大輿論的引導和支持；促進老齡人口政治社會化的切入點一是建立社區老年思想政治工作機制，把思想政治工作滲透到社區管理、社區服務、治安聯防、老年學校、鄰里互助、解決老年人生活困難等多種形式的活動中去。
  7. In theoretic analysis, i evaluate dual - economic model, experience analysis mode, agricultural development theories, rural industrialization theories, rural population migrants theories, these theorieses usually base on historical experience of developed countries, exsit many drawbacks, such as, the theoretic premise dose not in concordance with reality of developing countries, unilaterally exaggerate the city ' s ability to acc - ommodate rural labor force and so on

    在理論分析方面，對發展經濟學關於二元經濟模型、經驗分析模式、農業發展理論、農村工業化理論、農村人口城市化理論進行分析評價，這些理論通常以發達國家的歷史經驗為依據，存在諸多缺陷，如理論的前提假設與發展中國家的經濟現實不符、片面誇大了城市吸收勞動力的能力等。
  8. Therefore, when the enemy launches a full - scale offensive, the red army generally withdraws from the white area into the base area, because that is where the population is most active in supporting the red army against the white army

    所以當敵人大舉進攻紅軍時，紅軍總是從白區退卻到根據地來，因為根據地的人民是最積極地援助紅軍反對白軍的。
  9. In the first part, the paper mainly discourse upon the gestation course of theoretic base in laser physics, stimulated emission, population inversion and other basic theory of laser were discussed

    第一部分主要論述了激光物理理論背景的醞釀過程，對受激輻射、負吸收、粒子數反轉這幾個激光物理的基本理論的建立過程作了研究和分析。
  10. Part three : analyze the particular feature of population in shantou city and conclude it is in the stage of great - base, high - growth rate and large - scale family, big - density, great - shortage in qualified persons and great pressure in job - seeking

    第三部分：汕頭市獨特的人口特點分析。分析了汕頭市人口基數大、增長快、密度大、家庭規模大，文化素質低，生育壓力大，就業壓力大，目前仍處于高自然增長率的人口生產階段。
  11. We should base on our country " s specific national to choice scientific measure. so we must speed up the development of economic, improve our material living standard ; conduct system of government s reform continually. improve our political living standard ; develop advanced culture, improve our cultural living standard ; handle the relations among population, economic, society, environment and resources, choice a sustained development road

    為此，需要我們在全球化大潮中找準定位，牢固地樹立系統的觀點，切實地堅持開放的思維，堅定地實行改革開放，立足於我國具體國情，選擇科學的應對措施，努力做到:不斷地加快社會經濟的發展，不斷地提高人民的物質、文化生活水平;繼續推進和深化政治體制改革，努力提高人民群眾的政治生活水平和參與社會管理的能力;大力發展先進文化，不斷提高我國人民群眾的精神生活水平;正確處理人口、經濟、社會、環境和資源之間的相互關系，堅持走可持續發展的道路。
  12. This study dealt with the identification and evaluation of 8 maize populations from tropical and subtropical regions under the ecological conditions in zhengzhou, henan. results showed that the significant delaying days to shed and days to silk, discoordinating for the development of male and female, higher plant and ear height, more leaf numbers, high barreness, worse performance of ear traits compared with the ck ( temperate population ) were found, which showed the tropical and subtropical populations could not be utilized directly under the ecological conditions in zhengzhou. by using selection and improvement the tropical and subtropical populations can be used to broaden the genetic base of temperate maize breeding, beause of the greater genetic variation and higher selection potential within each population. the different performances of the sensitivity to photoperiod were observed among different tropical and subtropical populations and different traits. the asi, time to silk, ear height, leaf numbers, grain yield per ear could be used as the good evaluation traits for identifying the sensitivity to photoperiod

    對8個熱帶、亞熱帶玉米群體在鄭州生態條件下的表現進行鑒定和評價，結果表明，熱帶、亞熱帶群體散粉、吐絲期顯著延遲，雌雄不協調，植株和穗位高、葉片數增多、空稈率高，結實性差，果穗性狀均明顯劣於溫帶對照，在鄭州生態條件下不能直接利用，但是群體內具有較大的遺傳變異和選擇潛力，可以用來拓寬現有玉米種質的遺傳基礎；不同熱帶、亞熱帶群體的光周期敏感性不同；不同性狀對光周期反應的敏感程度不同， asi 、吐絲期、穗位高、葉片數、穗粒重可作為鑒定光周期敏感性的較好指標
  13. The paper is divided into three sector : in the first sector, base on cohort - component method and via quantitative analysis and qualitative analysis to matter of fact, the paper imports several variable : accelerating function of survival rate, correct children women ratio, proportion of infants, and establish correct cohort - component method. in the second sector, base on several hypothesis, zhejiang province population forecasts are made by correct cohort - component method, and population composing are presented in the future. in the third sector, base on results of zhejiang province population forecasts, the paper discusses change trend of mainly population index in the 21 century, and analyzes how population trend effects development of society and economy

    本文分三部分進行：第一部分，在隊列要素法的基礎上，通過對實際情況的定量分析與定性分析，在模型中引入了以下變量：生存概率加速函數、修正兒童婦女比、幼兒性別比，建立了修正隊列要素法模型；第二部分，在幾個重要假設的基礎上，根據修正隊列要素法進行浙江省未來五十年人口預測，給出了各預測年份分性別年齡的人口構成情況；第三部分，是在上述預測結果的基礎上，對21世紀前半葉浙江省的主要人口指標的變化趨勢進行討論，並對浙江省的總的人口變動趨勢及其對社會經濟發展影響進行分析。
  14. Hang - jia - hu water - net plain is the primary grain production base of zhejiang province. with a high population and intensive land utilization, agricultural non - point source pollution is extremely serious in this region. animal wastes, household cleaning products, farmland runoff and leakage mainly contribute to the anpsp

    杭嘉湖水網平原地區是浙江省主要的商品糧基地，土地利用強度大，人口稠密，農業面源污染嚴重，其中畜禽糞尿、生活污染、農田徑流和滲漏是該地區三大主要的農業面源污染源。
  15. Southern china hilly region is an important agricultural base and one of the regions in china which are most abundant in water and heat resources and most potential in agricultural and economic development. it feeds about 30 % of the total population with less than 12 % of the total plowland in china

    南方丘陵地區是我國水熱資源豐富、農業生產和經濟發展潛力最大的地區之一和重要的農業生產基地，在不足全國耕地總面積12的土地上，負擔了近全國人口30的人口。
  16. Besides, shanghai must also base itself on a large size of population in its strategy of development

    上海面臨少子化和高齡化，需要增加人口規模和改善人口結構，才能保證上海經濟可持續發展。
  17. The analyses given in this paper to quasi - three - level for 946 nm laser are complete. the relation between 946 nm laser transmission and optimal crystal length has been derived from the rate equations describing the population inversion and the photon density in the laser cavity in the steady - state case. the minimal claims to coating have been given on the base of contrasting 946 nm transmission with 1064 nm transmission in the condition of different cavity losses and how the pump beam radius in the laser crystal and optimal crystal length affect the laser threshold and output power of 946 nm laser has been given as well

    對產生946nm譜線的準三能級結構給出了較為完整的分析，利用激光諧振腔處于穩態時的速率方程，導出了準三能級nd ： yag946nm起振時，透射損耗與最佳激光晶體長度的關系，在與1064nm透射損耗相比較的基礎上，給出了不同的腔損耗情況下的最低鍍膜要求，並且給出了激光閾值、輸出功率和最佳激光晶體長度及泵光光斑大小的關系，這為設計室溫下高效運轉的946nm激光器的提供了理論基礎，這種分析方法對研究此類低增益，準三能級或三能級激光系統輸出特性有借鑒意義。
  18. With an urban area of 77 square kilometres and a population of 480, 000, it is guangdong s commodity export base

    歷史悠久的佛山，明末清初，與漢口鎮、景德鎮、朱仙鎮合稱四大名鎮。
  19. This article belongs to demonstration study, base on inspecting environment to typical area and analyzing a mass of data, the author detailed analyzed mutually affected way of northwest area population distribution and the environmental variation, opened out the problem between northwest area population distribution and the environmental variation, and then discussed how these problem effect building a well - off society in an all - round way, last under the promise goal of building a well - off society in an all - round way, put forward countermeasure and suggestion of the population distribution and the resources environment harmony development which have northwest local characteristic. the becoming references for the policy - decision are both the main subjects and the aims. this article can be divided into four parts according to the research content : the first part : elaborated the importance of ecological environment construction in building a well - off society in an all - round way

    本文屬于實證研究，作者在對典型地區採取社會學調查和環境考察，並充分利用統計數據和文獻資料的基礎上，詳細的分析了西北地區人口分布與資源環境變化之間相互作用的方式，揭示出西北地區人口分布與資源環境關系中的問題，並分析這些問題在全面建設小康社會進程中的影響，最後，在全面建設小康社會的目標約束前提下，提出了具有西北地區特色的人口分布與資源環境相協調的對策與建議，希望能為有關部門在全面建設小康社會的大背景下制定方針政策，提供一些意見和建議，同時為有志於研究西北地區人口與資源環境關系的學者提供一些參考資料。
  20. Strategically located in zibo city, the joint venture company draws upon a 4. 2 million regional population base for its skilled workforce, and is targeting its marketing at manufacturers located in the highly industrialized and fast growing shandong province

    合資企業戰略性地坐落於淄博市高科技園區，以420萬的本地區人口作為其優秀技能勞力來源，以高度工業化並快速發展的山東省境內製造廠商為其當前市場目標。
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