群的階數 的英文怎麼說

中文拼音 [qúndejiēshǔ]
群的階數 英文
order of group
  • 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
  • 的 : 4次方是 The fourth power of 2 is direction
  • 階 : 名詞1. （臺階） steps; stairs 2. （等級） rank 3. [醫學] （耳蝸的三個螺旋管的任一個） scala 4. [數學] order 5. [地質學] stage
  • 數 : 數副詞（屢次） frequently; repeatedly
  1. Seven plots selected from wanglang reserve were distributed in different types of forest and at different altitude, and different plot has different microclimate. soil property, microbial population, soil nutrient content of forest soil were determined in wanglang natural reserve, from may to october 2002 to july 2003, the ecological distribution of three main groups, bacteria, actinomycete and fungi were determined in the forest soils by the cell enumeration methods. six kinds of physiological groups, including ammoniation bacteria, nitrification bacteria, nitrosification bacteria, aerobic autogenesis azotobacter, aerobic cellulose - decomposing bacteria and anaerobic cellulose - decomposing bacteria were enumerated by the most - probable number ( mpn )

    2001年10月在王朗自然保護區內設立了3個定位研究樣地和4個臨時樣地，通過多次現場采樣與室內實驗分析，測定了白樺林、岷江冷杉林、紫果雲杉林、繡線菊-羊茅群落、羊茅群落及高山柳灌木叢等6種不同植物群落內土壤微生物三大類群數量、功能微生物數量、土壤養分，並在固定樣地內使用埋袋法進行了三個埋藏深度的凋落物分解袋試驗，初步研究了枝條、闊葉、針葉等凋落物組分在不同分解階段所含養分的動態變化。
  2. The growth dynamics of tree basal area of form. taxus chinensis var. mairei population in different altitude were discussed using the liu - logistic model, and the results showed that the altutide of 790 meters is more suitable to the survive of form. toms chinensis var. mairei population than 990 meters. plot sampling was selected and dynamic analysis was used to study the height structure of taxus chinensis var. mairei population, and the quadrate picture of height structure and the curve of survival rate were drew

    運用改進模型對南方紅豆杉種群在不同海拔梯度的種群優勢度增長進行了探討，表明海拔790m處的南方紅豆杉具有較大的環境容納量，但增長速度不快，海拔990m處的南方紅豆杉種群環境容納量不高，但具有較大的增長速度，這可能與群落的發育階段不同有關，兩地海拔均為南方紅豆杉適宜的生長海拔高度，相比而言，海拔790m的珍稀瀕危植物南方紅豆杉種群數量特徵的研究高度更宜於南方紅豆杉種群的生長。
  3. Theorem 2. 4 let g be a non - abelian inner - finite group, each non - trivial proper subgroup of g is prime order cyclic group if and only if g is a simple group ; each proper subgroup of g is nilpotent ; and each non - trivial subgroup of g is self - normalizer

    4設g是非阿貝爾的內有限群，則g的每個非平凡真子群都是素數階循環群的充分必要條件是g是單群， g的每個真子群冪零且g的每個非平凡的真子群自正規化定理2
  4. The numerical computation for the secular variable of the semi - major axis, solar distance at perihelion, orbital periods and longitude of perihelion has been made for fifteen meteor streams by using the solution of gylden - meshcherckii equations

    利用g - m型變質量天體軌道根數變化方程的一階和二階解對15個流星群軌道半長軸、近日點距離、軌道周期和近日點經度因太陽質量損失造成的每世紀的長期改變效應做了數值計算，並得出計算結果。
  5. With the increase of abandoned time, perennial plants increased, the function communities were richer, p diversity index in two communities reduced with abandoned interval, but the vegetation restoration was slow, the land abandoned for 30 years have not got to climax community

    隨撂荒年限的增加，多年生植物的種類和數量逐漸增加，植物群落功能群構成逐漸豐富，群落間多樣性指數隨撂荒時間間隔的增大而逐漸減小。但植被恢復緩慢，撂荒30年仍未達到頂極群落階段。
  6. Because of the limited cross - range resolution, high frequency ( hf ) over - the - horizon ( oth ) radar has the poor ability to determine the number of group targets and identify the large warship such as aircraft carrier in engineering applications

    我國的高頻雷達已進入工程化應用階段，但由於受分辨能力的限制，在群組目標的個數分辨及大型船隻的識別等方面仍有不足之處。
  7. For a maximal subgroup m of a finite group g the normal index of m is the order of a chief factor h / k where h is minimal in the set of supplements of m in g. in this paper we can obtain some results about solvability and supersolvability by using the normal indexes of maximal subgroups of finite groups

    有限群g的極大子群m的正規指數是指g的主因子h k的階，其中h為m在g中的極小正規補。本文利用正規指數的概念，獲得有限群可解，超可解的若干結果。
  8. We have calculated and plotted the curves of the refractive index, group velocity index, lowest - order and second - order dispersion indexes as a function of wavelength. the lowest - order and higher - order dispersion - induced broadening and deforming of light pulses is analyzed for various pulse shapes, such as gaussian, super - gaussian and hyperbolic secant pulses

    給出了折射率、群速指數、低階和二階色散系數隨波長變化的關系曲線，研究了高斯脈沖、超高斯脈沖和雙曲正割脈沖等超短脈沖在clbo晶體中傳播時，由於低階色散和高階色散引起的脈沖展寬和形變。
  9. The structures and dynamic changes of the artifical sand - fixing vegetation were studied based on the follow views : components of vegetation community, plant diversity, life - forms of vegetation, trends of plant growth, characteristics of the vertical and horizontal structure of vegetation, relationship between the vegetation community and environment ( including soil moisture temperature etc. ), relationship between the vegetation community and characteristics of plant physiological activities. some results were showed as follow : 1. components, diversity and life style of artificial vegetation in shapotou region the marked changes of artificial vegetation have taken place during more than 40 years, since the establishment of sand - fixing vegetation

    本文以騰格里沙漠東南緣寧夏中衛縣沙坡頭地區人工固沙植被作為研究對象，採用傳統生態學的野外調查方法，從植被群落的組成、多樣性、生活型、群落生長動態、垂直結構特徵、水平結構特徵、群落結構與周圍環境（土壤含水量、溫度）相互關系及其與植物自身生理生態適應特徵關系等多個角度研究了人工植被群落的結構及其動態變化，取得了如下研究結果： 1 、植被群落組成、多樣性及生活型：沙坡頭地區人工植被經過近50年的演變，從流動沙丘到固定沙地，沙地植被的動態變化經歷了從人工植被到人工?自然植被的轉變，從人工植被建立初期的少數幾種引種植物到現有30多種植物，隨著固定沙地時間的延長，植物種類日趨豐富，並且人工植被在15 25年、 40 50年兩個階段，物種的周轉速率最大，即群落結構變化最大。
  10. It also analysis the shinisaurus crocodilurus ' s severe danger mechanism. based on this, we present the suggestion of protection

    瀕危現狀和保育部分，對鱷蜥現階段種群分佈、數量進行了報道，分析了鱷蜥的瀕危機制，並在此基礎上提出了保護建議。
  11. The finite group that the order of maximal nilpotence subgroups are prime power

    極大冪零子群的階為素數冪的有限群
  12. In this paper, the author goes on with the research of [ 1 ] and determines the structures of some groups in which some primary subgroups is s - normal

    在這篇文章中，我們將繼續文獻[ 1 ]的研究工作，利用素數冪階子群的s -正規性給出了一個群是可解群、 p -冪零和亞冪零群的一些條件結構。
  13. Based on the analysis of the influence of ga operators on population diversity, this paper studies parameter control of ga and proposes a self - adaptive mutation probability. it can automatically regulate the mutation probabilities according to the population diversity at primitive stage and adopt different mutation probabilities at different stages. the results show that it is better than the fix and adaptive mutation probabilities

    在分析遺傳運算元對種群多樣性影響的基礎上，研究了ga的參數控制問題，提出了一種自適應性變異概率，它可在ga進化初期隨著種群多樣性的變化而自適應調整變異概率，並在ga進化的不同階段採用不同的變異概率。
  14. Abstract : in this paper we gave the relations of group actions orbits and orbits numbers, and the relation of group with the transtive action normal subgroup conjugatins subgroup and its applicatons

    文摘:運用群作用與同態刻劃了群作用之軌道，軌道數與群階數之間的關系，群與它可遷作用正規子群共軛子群之關系及其作用
  15. Steady environment means the number of enterprises is unchanging and the technology in developing or steady phase, while the dynamic environment means the condition changing tempestuously or in the period of technology pattern changing

    穩定環境，主要是指集群內企業數目沒有大的變化而且技術處于成長或者穩定時期的階段，與此對應，動態環境下是指環境變化激烈以及處于技術範式的轉變時期。
  16. These facts have been proved by the [ 5, c, 9, 10 ). in order to make the biological model more practical, many b iomathematicians and biologists have been working on the stage - structured models ( see [ 11 - 19, 31 - 40j )

    為了使生物數學模型更加真實，近年來許多的生物數學家和數學家已經考慮種群的階段結構對整個生物群落的影響（參見[ 11 19 ， 31 40 ] ） 。
  17. Simple ideal extension of a group of prime order by a finite commutative nilpotent semigroup on a tree

    素數階群按樹上有限交換冪零半群的單純理想擴張
  18. The text in the base of unscrambling concept of private economy particularly, adopting the developing datum about yangtze river delta from 1978 to 2004, the penman analyses private economy ’ s developing course of yangtze river delta, demonstrats its new developing characteristics and direction. however, although it ’ s always in the former rank in the national economy, still exists many problems. at present, financing is one of all - important problems, industrial organization is new way of its competition and amalgamation, and swelling independent technology innovation is a basic point of technology development. the penman believes that analysing and discussing this three problems at present is meanful. this text uses produce - funcion to analysing puzzledom of financing, uses the theory of be independent of manufacturer ’ s scale to analysing the internal forming mechanism, uses cost - benefit model to analyzing the mechanism of innovative impetus, finally, elicits improving countermeasure of its practical situation to putting forward powerful opinion

    融資歷來是長三角民營經濟發展的首要制約因素之一;產業集群是其競爭與融合的新走向;技術創新則是其發展的動力源。因此，在現階段對這三個問題的分析討論更具有時代性與必要性。本文運用「柯布? ?道格拉斯」生產函數解析長三角民營經濟的融資困境，分析其融資難成因;運用廠商規模無關論對長三角民營經濟產業集群的內在形成機制進行分析;從長三角民營經濟技術創新的現實模式出發，分析其制約因素，力圖給出幾點可行的對策建議，促進長三角民營經濟在新階段的可持續發展。
  19. Number of subgroups of a prime power order in a finite group

    有限群中素數方冪階子群的個數
  20. In chapter one, we classify the individuals of predator as belonging to either the immature or the mature and suppose that only mature population feeds on prey and immature population does not feed on prey. it is assumed that the transition rate from immature stage to mature stage depends on the density of immature individuals. we construct a predator - prey system with stage structure

    本文第一章，我們將捕食者種群分為未成年與成年兩個階段，並且假使只有成年個體捕食食餌，而未成年個體不捕食食餌；同時假設捕食種群中未成年個體成熟為成年個體的轉化率是未成年種群密度的函數；建立了具有階段結構的捕食者-食餌模型。
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