群擴散 的英文怎麼說

中文拼音 [qúnkuòsǎn]
群擴散 英文
group diffusion
  • 群 : Ⅰ名詞（聚在一起的人或物） crowd; group Ⅱ量詞（用於成群的人或物） group; herd; flock
  • 擴 : 動詞（擴大） expand; enlarge; extend
  • 散 : 散動詞1. （由聚集而分離） break up; disperse 2. （散布） distribute; disseminate; give out 3. （排除） dispel; let out
  1. It influences dispersion of the population.

    它影響種群的擴散。
  2. Gene flow the movement of alleles within and between populations of the same species through interbreeding

    基因流動：同一種群內由於雜交或種內選擇使某一等位基因在該種群內擴散。
  3. Metallothionein - ii, 6. 8kda, purified from the liver of rabbit induced by cadmium, has been crystallized in the space group p6322 using hanging drop vapor diffusion method, with unit cell parameters

    金屬硫蛋白懸滴汽相擴散法空間群晶胞參數不對稱單位中圖分類號：
  4. In the light of the recent work in biological models, especially in the chemostat models, the dissertation provides a systematic study on the asymptotical behaviour of some chemostat models built by delay or diffusion differential equations. the main contents and results in this dissertation are as follows : i ) the global asymptotic behavior of the chemostat model with the beddington - deangelies functional responses and time delays is studied. the conditions for the uniform persistence of the competing populations are obtained via uniform persistence of infinite dimensional systems

    本論文基於當前生物學模型，特別是恆化器模型的研究現狀，深入系統的研究了時滯和擴散方程描述的幾類恆化器系統的漸近性態，本文的主要內容包括以下幾個方面：一、研究了具有beddington - deangelies功能性反應函數的時滯恆化器模型，利用無窮維連續動力系統的一致持續生存的理論給出了兩競爭種群一致持續生存的充分條件，利用單調動力學系統得到了系統的全局漸近穩定性。
  5. The distribution of concentration still obeys the diffusion law, only the efftects of the group particle fall velocity and the dispersive force on the diffusion index z1 shall be considered

    懸沙濃度分佈仍遵循擴散定律，但擴散指教z1將受到顆粒群體沉速和離散力的影響， -般為y的函數。
  6. Firstly, this part analyzes location, natural conditions and natural resources, population and labors, socio - economic elements, and the impacts of global political and economic environment change on unbalanced development of japanese regional economy. secondly, through analysis on regional development before the meiji reformation, industrialization, formation of dual structure and regional development after war, this part puts forward that unbalanced development is an objective law and regional development policies of government ca n ' t change structure of unbalanced development essentially. finally, this part sums up motive mechanism of unbalanced development of japanese regional economy, including location directional feature, scale economy, congregation and diffusion economy, putting forward that the overall effects of the three types of mechanisms stated above can be summarized as industrial group effects, which is also the important mechanism of unbalanced development of japanese regional economy

    首先，分析了區位條件、自然條件與自然資源、人口與勞動力條件、社會經濟條件、國際政治經濟環境的變化對日本區域經濟非均衡發展的影響；其次，通過對日本明治維新前的地域開發、工業化及其二元結構的形成以及戰后的地區開發等過程進行了剖析，認為區域經濟非均衡發展是一個客觀規律，政府的地區開發政策並不能從根本上改變非均衡發展的格局；第三，總結了日本區域經濟非均衡發展的動力機制，主要包括區位指向性、規模經濟、集聚與擴散效應，指出上述三種機制的綜合作用可以概括為產業集群效應，即產業集群也是日本區域經濟非均衡發展的重要機制。
  7. The edge dispersal clone population regulation of hippophae rhamnoides subsp. sinensis in the mu us sandland

    毛烏素沙地中國沙棘無性系種群林緣擴散規律
  8. On the basis of investigated materials in the plot, the dynamics of edge dispersal of hippophae rhamnoides subsp. sinensis clone population was studied

    以樣地調查資料為基礎，分析了中國沙棘無性系種群的林緣擴散規律及其生態學意義。
  9. The system could move forwards at the speed of 1 m / a or the patches shifted their sites each other, which led to the clone population and maintained its stable state in even large area

    同時，林緣擴散種群具有密度大、生產力高等特徵，但其生物量積累和自然稀疏過程與有性植物種群具有相同的規律。
  10. The results of the investigation in forests showed that dastarcus helophoroides adults displayed a core distribution pattern, that belonged to aggegated distribution, and changed to mosaic distribution pattern in a denser population due to the exclusion behavior among the individual in host competition

    摘要林間調查和研究表明，花絨堅甲成蟲的分佈格局為聚集分佈中的核心分佈型，在群體密度較大時，由於個體間具有競爭寄主的排斥行為，其分佈則轉變為嵌紋分佈；花絨堅甲在進入新的分佈區后，首先是建立大小不等的聚集群，再以聚集群體的形式向周圍擴散。
  11. Facing the emergent public events, individuals will, to some extent, be frustrated, and be influenced in emotion and action within a certain time

    就群體心理而言，面對危機或突發事件，群體輿論方面會出現一種群體擴散效應，群體行為方面則可能出現責任擴散效應，從而不利於突發公共事件的及時處理。
  12. An epidemic is a widespread outbreak of disease in a community or region. a pandemic spreads around the world affecting a large number of people across many countries. the speed with which the disease spreads around the world can be exceptionally high given the large volume of trade and people movement across boundaries

    所謂流行病，就是指疾病在一個社群或地區中出現廣泛爆發大流行則指疾病在全球多個國家肆虐，感染者眾，而疾病在全球的擴散速度，也會因為大的跨境貿易與人口流動量而變得極為迅速。
  13. Subsequently, the grade diffusing process was described combining with the failure pervasion intensity, and the failure propagation paths and relevant key nodes with high pervasion ability were found with the ant colony algorithm

    結合故障的擴散強度，按照分步擴散的原則對故障傳播的過程進行了描述，同時用蟻群演算法求得擴散能力最強的故障傳播路徑及相應的關鍵節點。
  14. By using the method of upper and lower solutions, some properities about global solution, blowing - up and the range of the time of blowing - up are discussed to a three species mutualistic diffussion model

    摘要運用上下解方法討論了一類三種群互惠擴散模型整體解存在的條件、解的爆破性及爆破時間估計。
  15. The usage of reaction diffusion equations in the dynamics of biological populations mainly reflects that the ecological equations have a diffusion term

    反應擴散方程運用到生物群體動力學中主要體現在生態方程有了擴散項。
  16. In ecological systems, biological populations spontaneously migrant or diffuse from locations of high concentration to locations of low concentration by their own diffused rates di for the sake of effects of space, foods and other competitive factors

    在生態系統中，由於生存空間、食物等競爭因素的影響，生物群體自然地按各自的擴散率d _ i從密度高的地方向密度低的地方轉移、擴散。
  17. Three ibdv strains, designated as zj2000, zj991 and zj992, were isolated from bursa of fabricius of the sick chicken flocks in hangzhou, shenzhou, and ningbo of zhejiang province. the isolates could react with ibdv positive reference serum in the agar immune - diffusion test and caused 30 - 100 % mortality when passaged in chicken embryos. chickens inoculated with these isolates exhibited clinical and pathological signs typical of infectious bursal disease

    從浙江省杭州、嵊州，寧波等地暴發疑似傳染性法氏囊病的雞群中採集法氏囊病料（編號分別為zj2000 、 zj991 、 zj992 ） ，分離病毒，經瓊脂免疫擴散試驗、動物回歸試驗、雞胚回歸試驗和電鏡觀察等證實所分離的3株野毒是傳染性法氏囊病病毒。
  18. Research on network - based knowledge diffusion of industrial cluster

    基於知識網路的產業集群知識擴散研究
  19. This paper sets up a predator prey system with diffusion on two patches ; the main study is how diffusion affects the three populations ' existence when one of the two patches is polluted

    摘要建立了2個斑塊上種群擴散的食餌捕食系統，主要研究了當其中一個斑塊受到輸入量存在極限值的外來毒素污染時，擴散對2個斑塊上3個種群生存的影響。
  20. Necessary conditions of optimal distributted control for age - dependent nonlinear population diffusion system

    年齡相關的非線性種群擴散系統最優分佈控制的必要條件
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