類化目標擴張 的英文怎麼說

中文拼音 [lèihuàmùbiāokuòzhāng]
類化目標擴張 英文
generalized goal tension
  • 類 : Ⅰ名1 （許多相似或相同的事物的綜合; 種類） class; category; kind; type 2 （姓氏） a surname Ⅱ動詞...
  • 目 : Ⅰ名詞1 （眼睛） eye 2 （大項中再分的小項） item 3 [生物學] （把同一綱的生物按彼此相似的特徵分為幾...
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 擴 : 動詞（擴大） expand; enlarge; extend
  • 張 : Ⅰ動詞1 [書面語] （給弓或樂器上弦） fix （a bowstring）; string （a musical instrument） 2 （分開;...
  • 類化 : apperception
  • 目標 : 1. （對象） target; objective 2. （目的） goal; aim; destination
  1. Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants

    文摘:生物入侵是不均衡世界的一個永恆話題，尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的，但另外一些則有著嚴重的後果，會給入侵地的生物以至於整個生物群落造成影響.本文總結了分佈區擴張的常見模式，概述了它們對遺傳多樣性和種群結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑，來揭示伴隨擴張選擇和漂變在形成種群遺傳樣式中的作用.本文對日益增多的群體遺傳學方法進行了總結，這些技術可以用來在不同的時間尺度上推斷種群規模所發生的巨大變化（瓶頸效應及種群擴張） .最後，我們以歐洲櫟癭蜂（膜翅目，癭蜂科，癭蜂族）一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時間尺度上，多態的等位酶位點上等位基因頻率的數據表明: 1 ）遺傳多樣性沿入侵路線呈不斷下降的趨勢，支持了冰河期避難所作為遺傳多樣性中心的作用; 2 ）入侵地區的種群與該物種原產地的種群相比，遺傳上的分化更為強烈.這種種群結構在空間上的變異可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變異的反映
  2. Start from the study of the development and current station of the investment and fund circulation of infrastructures in cities in china, the thesis analyses the problems of the unclear faction of the goverment and the narrow channal and single way of financing and the trade monopolizing in it and then, at the request of rules of development of socialist market economy, useing the categorised theories of the products and service and the public financial theories in economics, the thesis tries to classify the projects of infrastructures into profit projects, quasi - projects and non - projects on the standard of profitable degree. and it presents the thoughts and goals of the reform of the investment and fund circulation of infrastructures on the study of the co - relation of the projects. the thesis maintains that establishing the investment and fund circulation company is the way of realization of the government inventment, and enlarge the investment scale through all kinds of channels, and raise the profitable degree of projects by establishing risk compensatory fund. the thesis compares the cost of the different financing waies and discusses the feasibility and necessity to issue the fund of city construction

    然後，按照社會主義市場經濟發展規律的要求，應用經濟學有關產品和服務的分類理論、有關公共財政的理論，以城建項目的可經營程度為標準，把城建項目分為難經營性項目、準經營性項目和經營性項目三類。研究了三類項目之間在特定條件下相互轉化的關系，在此基礎上提出了城建投資融資體制改革的推進思路和目標模式。主張設立城市基礎設施投資融資公司作為政府投資的實現形式，對不同類別的城建設施項目採取多元化投資融資方式，廣泛利用股票、債券市場、產業投資基金、資產證券化等方式，擴大城建設施投資融資規模，並重視利用外資和bot項目融資方式，以及通過設立投資風險補償基金，提高項目的可經營性程度。
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