演替分化的 的英文怎麼說

中文拼音 [yǎntìfēnhuàde]
演替分化的 英文
successional differential
  • 演 : 動詞1 （演變; 演化） develop; evolve 2 （發揮） deduce; elaborate 3 （依照程式練習或計算） drill;...
  • 替 : Ⅰ動詞1 （代替） replace; substitute for; supply [take] the place of 2 [書面語] （衰敗） decline Ⅱ...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 的 : 4次方是 The fourth power of 2 is direction
  1. So these karst series problems are lowness ability of making soils, distributing odds of surface water and groundwater, leakiness of fountain, alkalescence of circumstance, lowness of bio - diversity, rapidness converse succession of vegetation and fragility of soil character and entironment. and karst region produces many problems, e. g. rock desert, soil erosion and degeneration because of artificial influence and destruction

    巖溶空間介質具有地上地下雙層結構，可溶巖造壤能力低，巖溶水空間分佈不均、地表地下水關系密切、水源易漏失，偏堿性環境、生物資源集聚程度低，植被逆向演替快、順向演替難，巖溶地質與生態環境十分脆弱，受到人為因素的影響和破壞，極易產生石漠化、土壤侵蝕與退化等一系列問題。
  2. In the course, the condition and the process of forming and changing of minerals, the typomorphic features of minerals, the characteristics of the distribution and the evolution of minerals and their paragenetic associations in the period and the space, the methods of mineral analyses and research, the geological thermometers and the geologicial barometers of minerals, mineral paragenetic associations and paragenesis analyses will be introduced, and the magnificent and the microscopic genetic characteristics of pyrite, quartz, garnet, pyroxene, amphibole, mica, feldspar, and other minerals will be dealt with particularly

    本課程主要講述礦物及其共生組合的形成和變化的條件和過程，不同物理化學條件下礦物的成分、結構、形態、物性等標型特徵以及它們之間的內在聯系，礦物及其共生組合在時間上和空間上的分佈和演化規律，礦物成分、結構、形貌、物性等的分析測試方法，礦物地質溫度計和地質壓力計對其形成環境的表徵，不同體系（封閉體系、開放體系）條件下，礦物的穩定范圍和彼此替代順序的共生分析，重點介紹黃鐵礦、石英、石榴石、輝石、角閃石、雲母、長石等礦物（族）在成因上的宏觀標志和微觀信息，以及其成因信息在成巖作用和成礦作用中的地質意義。
  3. Culture solution of hydrodictyon reticulatum has been separated with membrance of 0. 2um, 0. 45um, and then microalgae is cultured with the separated solution. the results show that the mechanism that hydrodictyon reticulatum restrains microalgae is closely related to the chemical interference to microalgae from biometabolism of hydrodictyon reticulatum besides their resource competition. we also find that there are two main functional substances in permeated solution with membrance of 0. 45um, one substance is beneficial to other algae, the other can restrain growth of algae

    水體富營養化藻類資源竟爭與種群演替規律的初探中文提要通過用0 . 20以m ， 0 . 45林m膜對水網藻培養液的分離，再分別用分離液來馴化、培養微藻，結果發現，水網藻對微藻的抑制機理除與之進行資源競爭外，還與水網藻的生物代謝物對微藻的化學干預作用密切有關。
  4. Niche breadth of four dominate populations at three age groups was studied by the methods of resource utilization ability and ratio. the result shows that : symplocos sectchuanensis is a typical gengeration species whi ch resource utilization ability is strong, and distribution is wide. meanwhile, go rdonia acuminata, castanopsis fargesis and pinus massoniana specialized at some d egree in resource utilizationm, their distribution is limited. especially, the ju venile of pinus massoniana specialized outstandingly. with the devlopment of pinu s massoniana, which is the pioneer population in mt. jinyun, the environment become s unfit to it ' s juvenile. it turns to needle and evergreen broad - leaves mixed fo r est. because the tolerance toward shading of gordonia acuminata is lower than tha t of castanopsis fargesis, gordonia acuminata will be substituted by castanopsis fargesis and other evergreen broad - leaves species are the edificators. the popul ation ' s ability of resource utilization is the inner factor of population distri bution and community succession. the distribution of light and the concentrate of nutrient ( such as n ) is the outer factors of community succession

    對縉雲山森林植被的4個優勢種群3個年齡級生態位寬度進行了研究.結果表明，川灰木利用資源的能力最強、分佈廣，為典型的泛化種.大頭茶、栲樹、馬尾松對資源的利用在一定程度上特化，分佈上有一定的局限性.馬尾松的中齡組與幼齡組特化現象十分顯著.縉雲山森林植被的先鋒種馬尾松的發展，導致環境的改變不適于其幼齡個體的生長，群落演替到針闊葉混交林階段，最後發展為以栲樹等為建群種的常綠闊葉林.種群的資源利用能力，是種群分佈與群落演替的內在原因，光因子和營養元素（如n ）是群落演替的主要外部動力
  5. The radiation field evolves from a steady saturation state to a limit cycle oscillation state, and eventually to chaotic oscillation state as the current increases, the region in which the field exhibits limit cycle or chaotic oscillation is called the " soft " and " hard " nonlinear regime, respectively : ( 1 ) in the " soft " nonlinear regime, the radiation field is characterized by period doubled bifurcation and the discrete power spectrum

    隨著電流的增大，輻射場經歷由穩定飽和到極限環型的周期振蕩，並最終過渡到非周期性混沌振蕩的演化過程，按其狀態可分為「軟」和「硬」兩種非線性區域： （ 1 ）在「軟」非線性區域，場的極限環振蕩態和穩定飽和態是交替出現的，其特徵是典型的倍周期分岔，輸出功率譜是分立的。
  6. With succession of community, the activity of catalase increased gradually, and the vertical variation of the activity was affected by environmental factors and did n ' t show identical rule

    華東師范大學博士學位論文摘要過氧化氫酶活性隨著演替的發展有逐漸增大的趨勢。各植被帶酶活性垂直分佈受環境因子的影響而沒有統一的分佈規律。
  7. Severe fires can often cause changes in successional rates and soil hydrologic functions, degradation of soil physical properties, alter c : n ratios, and result in subsequent nutrient loss through accelerated erosion, leaching or denitrification, and alterations in microbial populations and associated process can occur

    高強度火燒往往能引起演替頻率的改變，土壤物理性質退化，水文功能發生改變，改變c n比，加劇侵蝕、淋溶和反硝化作用，導致養分流火，微生物數量及其相關過程發生變化。
  8. Accordingly, the dune deposits of the section since 150 ka bp can be divided into 38 alternate evolvement processes of desert and inter - desert periods, which accord with the sedimentary cycles of the section. it is further suggested from now climate in the area that the 38 inter - succession processes of dune deposits and fluvio - lacustrine or palaeosols in past 150 ka actually result from the alternate evolvement of the ancient east asia winter and summer monsoons in the mu us desert during the long geologic times

    從這一認識出發，將米浪溝灣剖面150ka以來的砂丘堆積劃分為38個旋迴的沙漠期與間沙漠期交替演化過程，並認為，該剖面自那時以來發生的38個砂丘沉積與河湖相或古土壤的演替過程，實際上是這一長期地質時代毛烏素沙漠受東亞冬夏古代季風影響交替演化所致。
  9. The main focus concentrates on the two most time consuming arithmetic in finite field calculation, field inversion and field multiplication. by analyzing in detail the performance of algorithms in composition fields, we have drawn a conclusion that the time consuming of square is less than that of multiplication with itself

    在對復合域中的演算法進行詳細分析后發現，多項式平方運算比元素自乘有更好的時間特性，因此盡可能地用平方運算替代自乘運算是在復合域中進行演算法優化的主要手段。
  10. Future research should focus on : ( 1 ) to identify and purify allelochemicals more effectively, especially for agriculture, ( 2 ) the functions of allelopathy at the molecular structure level, ( 3 ) using allelopathy to explain plant species interactions, ( 4 ) allelopathy as a driving force of succession, and ( 5 ) the significance of allelopathy in the evolutionary processes

    未來化感作用研究將集焦于如下五方面： （ 1 ）更有效地在實踐中，特別是在農業生產過程中鑒定和提純化感物質； （ 2 ）化感作用在分子結構水平的功能定位； （ 3 ）應用化感作用解釋植物種間相互作用； （ 4 ）化感作用在植被演替過程中的驅動力作用； （ 5 ）化感作用在進化過程中的意義。
  11. Revealing its succession and evolution relationship, unearthing and making full use of the inner resources, we can provide valuable enlightenments to the internationalization, such as the strategic target of constructing the classic universities in the world, and taking the trade in education service, etc. after the analysis of the history and present condition of the internationalization of higher education, this paper concludes that we should deal well with the relationship between the theory of knowledge and politics, between the internationalization and nationalization

    揭示其中的繼承、更替和演變關系，充分挖掘和利用蘊含其中的豐富資源，可以為我國世界一流大學的建設和教育服務貿易等高等教育的國際化發展提供珍貴的借鑒和啟示。通過對中國高等教育國際化歷史的回顧和現狀的分析，本文總結認為，要使高等教育國際化健康持續發展，必須妥善處理好政治論與認識論、國際化與民族化的矛盾對立和協調平衡關系；科學和高效地利用國際資源，可以促進高等教育國際化與現代化水平的共同提高。
  12. To solve such a problem, this paper analyzes the influence of tourism destination lifecycle and of spatial structure creatively with the theories of tourism geography, pointing out that the influences are different in different lifecycle phases with different distinct characteristics, that the special spatial structure always makes tourism destinations facing more complex conditions and take more heavy environment pressure

    針對這一問題，文中嘗試運用旅遊地理學的理論，對歷史文化遺產旅遊地生命周期演替和空間結構特徵對遺產保護產生的影響進行分析，指出旅遊地生命周期的階段性特徵會對遺產保護產生不同的影響；特殊的旅遊地空間結構特徵使得歷史文化村鎮旅遊地往往面臨更為復雜的局面和更為沉重的環境壓力。
  13. The paper studied three aspects of extracelluar enzymes in sediments of the tidal flat wetland, namely 1 ) the distibution of five sorts of extracellular enzymes in sediments in the east end of chongming island along the elevation gradient or community succession series, the relationships between the activities of enzymes and the ecological factors, and functions of extracellular enzymes in the process of community succession ; 2 ) the effects of the heavy metal ions and edta on the activity of alkaline phosphatase in sediments of the east end of chongming island by adding and removing of heavy metal ions, discussing whether the activities of extracellular enzymes could be taken as the indicators for the environmental status ; 3 ) the variations of the activities of extracellular enzymes in sediments in the east end of hengsha island after the discarding clay

    本文以長江口典型濕地?崇明東灘為例，首次研究了沿高程梯度或沿植被演替系列沉積物中堿性磷酸酶等五種胞外酶活性的空間分佈規律，分析了胞外酶活性與環境因子的相互關系及其產生機制，討論了胞外酶活性在濕地植被演替中的作用。同時以崇明東灘沉積物為對象，運用重金屬離子的添加和去除等方法，研究了重金屬離子對沉積物中堿性磷酸酶活性的影響，利用胞外酶活性的變化探討了崇明東灘重金屬污染的狀況。此外，本文還研究了橫沙東灘吹泥試驗工程對沉積物環境因子和胞外酶活性的影響並進行了對比分析。
  14. In this thesis, we improve viterbi beam search algorithm from tow aspects. on the one side, we present a new adaptive viterbi beam search algorithm referred to as adaptive viterbi beam search algorithm based on variation of active model numbers

    一方面，使用自適應的裁剪門限代替固定不變的裁剪門限，分析了現有自適應viterbibeam搜索演算法的局限性，提出了基於活動模型數變化的自適應viterbibeam搜索演算法。
  15. Wuxi county is located in typically fragile ecological strip - - three gorges reservoir area and belongs to national ecological environment construction key region. based on soil and water conservation project in wuxi county this article designs the landscape health assessment system and analyses health classes of degraded ecosystem by applying fuzzy ahp method, discloses degraded characteristics in aspect of land use patterns in wuxi county contrasted with bishan county, puts forward ecological restoration models combined with soil and water conservation harnessing, analyses and compares soil fertility quality in biological communities of different ecological restoration succession phases and restoration measures

    本論文依託巫溪縣水土保持生態修復項目，運用模糊層次分析方法，進行退化生態系統的景觀健康評價體系設計與健康等級分析；通過對比研究巫溪縣與另一個生態修復試點縣? ?璧山縣的土地景觀空間格局分析，揭示巫溪縣土地利用格局上的退化特徵；提出與水土保持治理相結合起來的生態恢復模式；引用土壤肥力質量指數，對生態修復區不同生態恢復演替階段群落及不同時期坡改梯、休耕地與封山育林三項生態修復措施的土壤肥力質量分析與對比。
  16. 5 the dynamic of soil water content and salinity is significantly different among communities in ecotone. the soil moisture and salinity are two main factors that influence the distribution and succession of plant communities

    5 、過渡帶各類型群落間土壤水鹽動態存在顯著差異，土壤水鹽的梯度變化是群落分佈和演替的根本原因。
  17. The results showed the trend of soil ifi changes was partial " u ", namely, during the course of artificial picea succession, soil ifi decreased sharply at the initial stage, after artificial picea reaches mature forest, soil ifi recovered slowly and reached soil ifi of natural coniferous forest finally

    在人工雲杉林地中，土壤ifi表現出非正「 u 」型的變化，即雲杉幼林向成熟林演替時，土壤ifi迅速下降，大約在雲杉40齡出現自疏之後，土壤ifi回升，但恢復速度十分緩慢。
  18. The article study soil enzyme activities and the content of soil organic carbon in zanthoxylum bungeanum forest in karst area of huajiang in guizhou province, the results shows : the content of oxidizable organic carbon was increased with the increasing of plantation age in karst area, which implied karst eco - environment declined

    摘要本文通過對花江喀斯特地區花椒人工林演替過程中部分土壤碳轉化酶的活性以及不同活力活性有機碳研究，得出在喀斯特地區花椒人工林中隨著種植年限的增加，土壤中活性有機碳的含量不斷上升，生態環境處于惡化的變化過程中。
  19. Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail

    針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向，本論文重點做了以下幾個方面的工作，目的在於提高dtc系統的綜合性能： （ 1 ）提出一種新型的速度磁鏈觀測器，新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度，並且根據popov超穩定性理論推導出轉速的新型自適應收斂律； （ 2 ）改善系統的低速運行性能，主要從提高低速時對定子磁鏈的估計精度入手，提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數； （ 3 ）採用數字信號處理器dsp實現系統全數字化硬體控制，結合ti公司生產的tms320lf2407晶元，設計了直接轉矩控制系統的實驗裝置； （ 4 ）提出了基於sercos總線網路化分散式的直接轉矩控制系統， sercos （ serialrealtimecommunicationsystem ）是目前最適合同步和協調控制的串列實時通信協議； （ 5 ）基本勾勒出整個控制系統的硬體和軟體設計基本框架，詳細描述一些實驗中的具體的細節問題。
  20. At the soonest approach concerned the theoryon after liberation was producer goods precedence growth, two greater part proportional relation and others, present research tend to industrial structure fluctuant resource allocation effect, industrial policy, traditional industry ' s adjustment and quantification research. industry organization theory is based on microeconomics, orthodox industry organization theory ' s basic feature is scp analyses paradigm, primary school has harvard as well as non - mainstream ' s chicago school, innovation school and neo - austrian school. hotspots in our country recent years are enterprise size, industrial concentration, market structure, as well as relation to performance, entering and exit mechanism and industrial system policy. this article takes over evolutionary economics ' s analytical approach to analyse institution and technology change, which may affect manufacturing industry, and using evolutive viewpoint to research competition, regional cooperation. based on industrial economics ' s theory, the artical puts forward that manufacturing industry take the leading function in economic structure transformation, manufacturing industry ' s laging is maxima drawback for the agro - industry change, and others

    產業結構理論早在威廉?配第的著作中已有論及，要點是產業間的相對收入差異導致勞動力的部門流動；后來又有關于勞動力在三次產業間移動趨勢的研究，產業結構演替規律的分析，工業化過程與后工業化社會，工業結構的高加工度、高技術化及產業結構軟化等問題的研究，我國建國後有關的理論最早探討生產資料優先增長、兩大部類比例關系等，目前的研究則趨于對產業結構變動的資源配置效應、產業政策、傳統產業調整進行定量化研究。產業組織理論以微觀經濟學為基礎，正統的產業組織理論的基本特徵是scp分析範式，主要有哈佛學派和芝加哥學派、新制度學派和新奧地利學派。
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