正趨化性 的英文怎麼說

中文拼音 [zhēngqūhuàxìng]
正趨化性 英文
positive chemotaxis
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 趨 : 動詞1. （快走） hasten; hurry along 2. （向某個方向發展; 趨向） tend towards; tend to become
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  1. The spermatozoids of primitive plants are often positively chemotactic, swimming toward the female organs in response to a chemical secreted by the latter

    較原始的植物的游動精子有正向的趨化現象，總是游向由雌性器官所分泌的物質。
  2. On the basis of foreign documents, the dissertation firstly describes the morphology, taxonomy, and biological characters of cochineal insects. then, by using artificial climate cases in the lab, according to orthogonal design, 8 lands of combinations of temperature, humidity and light is set, while the temperature has four levels : 15, 20, 25 and 30, and the relative humidity has two levels : 60 % and 80 %, while the light also has two levels : 980 lux and 60 lux. through observations and analysis of hatching percentage, survival percentage of the first instar and during from the second instar to the adult, the population tendency index, generation life cycle, size and eggs of female adult, the development of the cochineal under different conditions is studied

    在收集、整理國外對胭脂蟲的研究資料基礎上，首先從胭脂蟲的形態學、分類學、生物學特性入手，進而在實驗室內利用人工氣候箱，應用正交設計方法，設計了4種溫度、 2種濕度、 2種光照梯度的不同組合，通過測定胭脂蟲的孵化率、 1齡若蟲的存活率、 2齡若蟲至成蟲期存活率、種群趨勢指數、世代歷期、雌成蟲的大小、懷卵量等生物學指標，深入研究胭脂蟲在這些組合下的生長發育狀況，應用數理統計方法，分析出溫度、濕度和光照對各項生物學指標的影響，找出胭脂蟲適宜的室內培育條件，並為野外胭脂蟲的培育提供一定的理論依據。
  3. The repeatability of usage and sale, the infinitude degression of average cost and the market framework where competition and monopolization are both strengthened, are changing or will change the laws of the traditional economy

    信息產品銷售和使用的可重復性，平均成本遞減的無限趨勢，壟斷與競爭的雙向極端強化型市場結構等等，都正在或將要改變傳統的經濟運行規則。
  4. This dissertation aims to probe into the institutional changes and institutional clashes between the enlarging european union and the central & eastern european countries ( ceecs ), as well as to construct a tentative theoretical innovation to account for institutional interactions between them. supported by political neo - institutionalism and borrowing institutional concepts from nobel prize - winner douglas north, the dissertation is set against a background of the dual process of institutional expansion by the eu and active institutional convergence on the ceecs " own accords. starting from the positive and negative impacts triggered by eu enlargement on both the eu ' s and the ceecs " political, governance and economic institutions, the dissertation carries out a systematic study of the partial adjustments and comprehensive reforms on the part of the eu, as well as of the europeanized transformation of the domestic institutions in the accession countries

    本文以新制度主義政治學為理論支點，以歐盟通過東擴實現制度擴張及中東歐向歐盟制度主動趨同的進程為背景，以東擴引發的制度變遷和制度對撞為研究對象，從分析考察東擴進程對于雙方政治權力制度和經濟治理制度的雙向沖擊及正負面影響入手，系統研究了歐盟東擴引發的歐盟制度局部調整與全面改革、及中東歐新成員國國內制度的歐洲化轉軌之雙重進程，分析總結出東擴制度互動的規律、模式與渠道，並在此基礎上構築了一種解釋轉型國家與超國家機構之間制度互動的實驗性理論模型「錮囚鋒理論」 ，從理論高度上對現實規律進行歸納。
  5. Collisonal quantum interference ( cqi ) was observed in the intramolecular rotational energy transfer in the experiment of the static cell, and the integral interference angles were measured. to observe more precise information, the experiment in the molecular beam should be taken, from which the differential interference angle can be obtained precisely. in this paper, the theoretical model of cqi is described in an atom - diatom system in the condition of the molecular beam, based on the first - born approximation of time dependent perturbation theory, taking into accounts the anisotropic lennard - jones interaction potentials. the method of observing and measuring correctly the differential interference angle is presented. the changing tendencies of the differential interference angle with the impact parameter, velocity, and et al. are discussed

    分子內部轉動傳能的靜態池實驗觀察到了碰撞量子干涉效應（ cqi ） ，並且測得積分干涉角，為了獲得更加精確的分子內部轉動傳能的碰撞量子干涉效應信息，實驗就必須要採用分子束實驗進行.本文理論上採用各項異性相互作用勢，應用含時微擾理論的一級波恩近似，假想在分子束實驗的條件下，建立在原子-雙原子分子體系中碰撞量子干涉的理論模型.理論上推導出微分干涉角具體表達式，通過計算定性地討論了微分干涉角隨著碰撞參數、速率等的變化趨勢，同時初步探討了實驗的正確觀測途徑，得出了採用分子束進行實驗觀測的實驗方法，為進一步進行分子束實驗提供了理論基礎，對實驗的進行起到了一定的借鑒作用
  6. To validate the formulated transition element for the calculation of the hot - spot stress and stress concentration factor in the welded components by experimental results, the stress concentration factor of the experimental welded specimens carried out in the research group is calculated by using the developed plane - transition element. the calculated stress concentration factor in the two types of tested welding components agrees well with that obtained from the experimental result. and the calculated result on the tendency of hot - spot stresses agrees well with that from the measured result

    為了驗證文中構造的過渡單元模型用於分析焊接節點附近的應力集中問題的正確性和有效性，進一步又對過渡單元模型進行實驗結果驗證，採用平面過渡單元模型計算了本課題組進行的兩類焊接構件的應力集中系數，並與根據實測方法得到的應力集中系數進行了比較，計算結果與實驗測試得到的應力集中系數和相應的熱點應力變化趨勢比較吻合，為本文建立的過渡單元的實際應用提供了初步的基礎。
  7. The low solubility of calcium zincate produced from the chemical reaction of zinc oxide and calcium hydroxide in alkaline solution can improve the cycling life the zinc electrode, and the discharge capacity will tend to be stable. furthermore, the effects of la2o3 additives on the electrochemical performances of zinc electrodes were investigated. the results shows that the addition of la2o3, in zinc electrode can improve the area of reduction peak and the hydrogen evolution potential which means the cathodic hydrogen evolution reaction can be hindered

    氧化鋅與氫氧化鈣在堿性溶液中化學反應生成的難溶於堿的鋅酸鈣可以使鋅電極的循環壽命得到提高，放電容量也趨于平穩，此外還考察了氧化鑭對鋅酸鈣電極電化學性能的影響，結果表明：添加適量氧化鑭能明顯改善鋅電極的電化學性能，使鋅電極的還原峰電位正移，電極反應可逆性得到改善，同時也可抑制鋅電極析氫反應的發生，提高了鋅電極的陽極電流，對陽極反應有一定的活化作用；同時還可以改善鋅電極的放電特性，增加電極的放電容量。
  8. So how to utilize the foreign - capital actively, reasonably, effectively and efficiently has been a realistic subject. under this situation, the paper analyses the latest change and tendency of inner and exterior environment of foreign - capital utilizing of china, and put forward the new strategies facing 21st century. the paper adopts following research method as system method, comparison method, qualitative and quantitative method and theory - policy combined method and mainly involve the suitable scale strategy, cross - border merger and acquisition strategy, industry leading strategy and continent strategy

    本論文正是以我國加入wto為大背景，站在戰略的立足點上，以綜合運用系統分析法，比較分析法、定量、定性法、理論和政策結合法，和大量查閱文獻為基礎，對我國利用外資內、外環境的最新變化和趨勢以及利用外資規模進行了分析，並針對幾個關鍵的環節，對我國利用外資戰略問題進行思考和探討。
  9. With the rapid development of railway construction in china, the network size has been continuously expanded, the net framework strengthened and the network structure optimized. at the same time, the task of railway transportation has been more and more onerous, then the railways are constructed in different ages, complex geological conditions and effected by their designs and constructions as well, in addition, the railways are making advances to speed - up and load - over now, so many railway roadbed have the existence of all kinds of diseases in different degree. these diseases effect badly the normal railway operation, even they may bring about catastrophic accidents

    隨著我國鐵路建設的飛速發展，路網規模不斷得到擴大，路網骨架不斷得到加強，路網結構不斷得到優化，但與此同時，鐵路部門運輸任務日趨繁重，加之我國鐵路修建年代不同、地質條件復雜及受當時設計施工等因素的影響，且目前我國鐵路正朝著高速重載方向發展，許多線路路基存在著不同程度的病害隱患，嚴重影響列車的正常運營，甚至造成災害性的事故。
  10. At the same time, it has a number of drawbacks such as the potential for dehumanization as well for social disparities and exclusion

    與此同時，也存在著眾多諸如潛在的去人性化趨勢以社會不公正以及排斥為特點的障礙。
  11. On the basis of the engage efficiency and lubricious conditions, theoretical transmission efficiency with the different drive ratios ( 1 / 50 and 6 / 31 ) of involute cylinder worm gears is analyzed. at the same time, the change trend of engage efficiency and transmission efficiency with different design parameters is discussed. the experimental investigation on transmission efficiency

    從漸開線蝸輪蝸桿傳動的嚙合效率和潤滑條件兩個方面對不同傳動比的漸開線圓柱蝸桿的傳動效率進行理論分析，並通過傳動比分別為1 / 50和6 / 31的漸開線圓柱蝸桿設計參數得到蝸桿潤滑條件的理論分析結果和蝸桿嚙合效率、傳動效率的變化趨勢，同時利用電測法對蝸桿傳動的傳動效率、潤滑油平衡溫度進行測試，將測試數據與理論計算結果進行對比分析，得出理論分析結果的正確性。
  12. By home analyzing the experiment result, we think that the covalent bond is more than the electrovalent bond in y - fe _ ( 2 ) o _ ( 3 ) crystallites. it is the dominating reason that the dependence of y - fe _ ( 2 ) o _ ( 3 ) crystallites grin size on lattice constant is differ from one of the ionic crystallites

    通過對實驗結果的進一步分析，我們認為其主要原因是在丫一fezo3中原子之間結合的共價性超過了離子性，因而導致了它們的晶格常數隨晶粒線度的變化趨勢和離子晶體正好相反。
  13. We agree with the framework of international governance to elucidate the problem, and recognise international governance as a conception inheriting in historical change, which emphasizes certain organizing pattern of collective action in the construction of international order by sovereignty states in the course of history. then we probe into the possibility and the problems of multipolarization facing which as a objectively progress trend leads to a new international order of reciprocal cooperation and fair - and - square in perspective of collective action

    我們認同在國際治理的框架內來分析多極化與國際秩序重構相聯的問題，並將國際治理看成是一個歷史延續下來的概念，它強調主權國家在建構國際秩序的歷史進程中所形成的某種集體行動的組織方式，進而來探討多極化作為一個客觀的發展趨勢，其將在集體行動意義上導向互惠合作、公正合理的國際新秩序的可能性和將面臨的問題。
  14. It has been maked for immediate and statistical analysis that the calculation about the work order parameter of the base - bleed - rocket is calculated in the taguchi method, its influencing trend is bring out in the open, the theoretical base is settled for confirming the greatest combination about the work order parameter of the base - bleed - rocket. the multi - objectile optimal design model is established that the indexes have been taked into account first and synthetically, such as physical parameter range lethality power strength and flight stability and so on, the program is compiled and the example is calculated. the true worth of the theoretical work in this paper is validated by flight experimentation of 130mm hybrid base - bleed - rocket extended - range principium projectile

    本文進行了底排?火箭復合增程彈工作時序參數正交試驗設計的直觀分析與方差分析，揭示了每個參數對射程計算的影響趨勢，為進一步確定底排?火箭工作時序參數值的最佳匹配組合奠定了理論基礎；建立了底排?火箭復合增程彈多目標優化設計模型，該模型首次綜合考慮了底排?火箭復合增程彈的結構特徵參量、結構強度性能、飛行穩定性、威力性能和射程指標，編制了相應的分析程序，進行了算例計算；完成了130mm底排?火箭復合增程原理樣彈的結構設計與飛行試驗，其試驗結果驗證了本文理論研究工作的實際應用價值。
  15. At present, sports marketing is an idea with meaning but without exact definition. some enterprises eager for quick success and isntant benefit have used sport marketing as a fast way of making money similar to sales promotion. therefore, sports marketing does not play an important role for these enterprises. for those enterprises stressing long - term interest, sports marketing is more effective and useful than promotion and advertising

    目前體育營銷是一個有內涵而無定義的概念，急功近利的企業把體育營銷更多地看成是和促銷一樣的短平快營銷手法，而不能正確認識體育營銷內涵，因而體育營銷對企業並無太多的促進作用;注重長遠利益的企業視體育營銷是絕對高於促銷、廣告之上的一種高層次營銷手法，尤其是在產品層面和市場層面的營銷趨同性越來越嚴重的時候，體育營銷給企業的作用將是多元化、復合型、持久性的。
  16. And through the analysis of group differences reflected, on the social network, by the work force in different groups with different professional role in the present rural area, this research gives the prophecy of the evolving tendency of the social supporting network of the work force in the rural area in china. the thesis is divided into four parts : the first part expatiates the focus of attention, purpose, significance, innovation, feasibility, research idea and research methodology of the paper. the second part, through the five aspects of the scale of the social supporting network, relation constitution, compactness degree, convergence and diversity, describes and analyses the general character of the social supporting network of the work force of the rural area, and roots out that the social supporting network of work force in rural area in china is in the process of slow and gradual transform

    全文共分四大部分：第一部分，闡述本研究的出發點、目的、意義、創新性、可行性、研究思路以及研究方法；第二部分，從社會支持網的規模、關系構成、緊密程度、趨同性、異質性等五個方面，描述和分析了農村勞動人口社會支持網的一般特徵，發現當前我國農村勞動人口社會支持網，正處于較緩慢的漸進的變革過程中，傳統農民的社會支持網已經開始呈現出一定的多樣性和豐富性的特點；第三部分，通過控制職業角色分化因素，對不同職業角色群體勞動人口的社會支持網進行差異性分析，發現較之農業勞動者群體而言，工商業勞動者群體的社會支持網更為復雜與多樣，其社會效用也更大；第四部分，在概括本文研究結論的基礎上，預測農村勞動人口社會支持網的發展趨勢，明確現代社會網的創新方向。
  17. These results again proved that the reform improved the pricing function of stock marke, the prcie of stocks are differentiating reasonably

    這說明，資本市場的定價功能正在完善，公司價值正趨于理性分化。
  18. This feature reflects the physical phenomenon of breaking of waves and development of shock waves. in the fields of fulid dynamics, ( 0. 2. 1 ) is an approximation of small visvosity phenomenon. if viscosity ( or the diffusion term, two derivatives ) are added to ( 0. 2. 1 ), it can be researched in the classical way which say that the solutions become very smooth immediately even for coarse inital data because of the diffusion of viscosity. a natural idea ( method of regularity ) is obtained as follows : solutions of the viscous convection - diffusion pr oblem approachs to the solutions of ( 0. 2. 1 ) when the viscosity goes to zeros. another method is numerical method such as difference methods, finite element method, spectrum method or finite volume method etc. numerical solutions which is constructed from the numerical scheme approximate to the solutions of the hyperbolic con - ervation laws ( 0. 2. 1 ) as the discretation parameter goes to zero. the aim of these two methods is to construct approximate solutions and then to conside the stability of approximate so - lutions ( i, e. the upper bound of approximate solutions in the suitable norms, especally for that independent of the approximate parameters ). using the compactness framework ( such as bv compactness, l1 compactness and compensated compactness etc ) and the fact that the truncation is small, the approximate function consquence approch to a function which is exactly the solutions of ( 0. 2. 1 ) in some sense of definiton

    當考慮粘性后，即在數學上反映為（ 0 . 1 . 1 ）中多了擴散項（二階導數項） ，即使很粗糙的初始數據，解在瞬間內變的很光滑，這由於流體的粘性擴散引起，這種對流-擴散問題可用古典的微分方程來研究。自然的想法就是當粘性趨于零時，帶粘性的對流-擴散問題的解在某意義下趨于無粘性問題（ 0 . 1 . 1 ）的解，這就是正則化方法。另一辦法從離散（數值）角度上研究僅有對流項的守恆律（ 0 . 1 . 1 ） ，如構造它的差分格式，甚至更一般的有限體積格式，有限元及譜方法等，從這些格式構造近似解（常表現為分片多項式）來逼近原守恆律的解。
  19. Under the situation of radical change of china life insurance market, new opportunities and challenges with wto entry, the standardize of more and more matured market place, the rational behavior and individuation of insurance consumption, the severe credibility crisis of sales team, the specialists and the marketing group of life insurance start to review the current operational practice of life insurance marketing, in order to explore a new developing theory of individual life insurance marketing

    中國個人壽險市場正經歷著巨大的變革，加入wto所帶來的新的機遇與挑戰、市場的不斷成熟和更加規范、保險消費的日趨理性和個性化、個險營銷的誠信危機的日益凸現，使得廣大的個險營銷工作者和專家學者開始對現行的營銷運作模式進行反思，以探索新的市場環境下的個險營銷發展之路。
  20. Under the current situation of the products seriously supply exceeds demand, consumer ' s buying behavior are becoming more rational, the buyer ' s market is occupying the leading position more and more, the competition ways of enterprises are changing fundamentally : carry out the transition to customer ' s satisfactory competition from the competition of the products

    在產品嚴重供大於求的現狀下，消費者購買行為日趨理性化，買方市場越來越占據著主導地位，企業的競爭方式正在發生根本性的變化：從產品競爭過渡到顧客滿意的競爭。
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