mature population 中文意思是什麼

mature population 解釋
成熟種群
  • mature : adj （ turer; turest）1 （有機體）熟的，成熟的；（精神、智力）圓熟的，發育完全的。2 （葡萄酒等）...
  • population : n. 1. 人口；人口總數；全體居民；人口的聚居。2. 物的全體[總數]；【生物學】蟲口；種群（量）；群體；族，組，個數；【統計學】對象總體，全域。3. 【物理學】布居；密度。4. 〈罕用語〉殖民。
  1. Taxus chinensis vsr. mairei population is very oblivious from seeding stage to mature tree stage. the patterns were consistant with the ecological and biological characteristics of form. taxus chinensis var. mairei which were valuable and rare and in severe danger. in this paper, logistic model and liu - logistic model were proposed to approach the growth dynamics of tree basal area of form. taxus chinensis var. mairei population

    南方紅豆杉幼苗表現為較強的聚集分佈，除與種子的散布有關外，生境條件的差異是重要原因之? ，其它發育階段表現為明顯的隨機分佈，表明它在自然群落中分佈的概率很小，反映了南方紅豆杉珍稀瀕危的生態生物學特性和特徵。
  2. Our country " population and family planning law " the basic marriage holiday that stipulated late childbirth of marry at a mature age can enjoy a country to set clearly, birth holiday, prolate rewards marriage holiday and award to bear pay of false other perhaps material benefits

    我國《人口與計劃生育法》明確規定了晚婚晚育都可以享受國家規定的基本婚假、生育假，延長的獎勵婚假和獎勵生育假或者其他福利待遇。
  3. The growth of the both species is of logistic naluf. the mature species - y preys on the mature - x. by using the lyapunov function we obtain the - conditions for globally asymptotic stablility of positive equilibria without harvesting. conditions for global asymptotic stablility of four positive equilibria with harvesting and the threhold of hai vi - sting mature population

    但從目前已知的文獻來看，對于兩個種群同時具有年齡階段結構，且同時對兩個種群進行開發的結果較少，本文通過構逅lyapunov函數，得到了當捕獲率不為零時上述模型存在一個全局漸近穩定的正平衡點的充分條件，也就是說，在一定條件下，種群兄。
  4. The results indicated that liangyoupeijiu showed better plant and leaf type, higher ratio of grains to leaf area and larger photosynthesis area, stronger ability of population dry matter accumulation during the period of vegetative growth especially from heading to being mature, longer leaf duration and grains - filling after heading than that of its parents and controls s ; more grains per panicle, lager all sink per plant and 1000 - grain weight

    結果表明：兩優培九株葉型好，粒葉比和光合面積大，營養生長期群體干物質積累能力強，始穗后葉片功能期長、籽粒灌漿持續時間較長，抽穗期至成熟期的干物質增量明顯強于其親本和對照組合；穗頸節間維管組織比親本及對照發達；兩優培九單株總庫容量大，每穗實粒數多，千粒重較大。
  5. Taxus chinensis var. mairei population in form. taxus chinensis var. mairei community using six aggregate indices ( c, i, i m, pai, ca, ), then analyze the causes of evolved pattern. the results indicated that the distribution pattern of seedling were all clumped in every plot, however, the distribution patterns of sapling, media tree and mature tree were mostly random. the trend of diffuse of form

    ）回歸分析法研究了南方紅豆杉林中南方紅豆杉幼苗、幼樹、中齡樹和成樹的分佈格局及動態，並分析格局形成原因，結果表明，各樣地南方紅豆杉種群幼苗均成聚集分佈，幼樹的分佈格局偏向于隨機分佈，而中齡樹與成樹則為隨機分佈，從幼苗到成樹，隨機擴散的趨勢十分明顯。
  6. " while the pki is still recognised as the most mature technology available to address the full range of authentication, confidentiality, integrity and non - repudiation issues of electronic transactions, and the e - cert can be used in a broad range of e - government and e - commerce transactions, most of the applications are used only by a small segment of the population and its use at the individual level is mostly optional, " mrs fung explained

    公鑰基建在處理電子交易所涉及的真確性、機密性、數據完整性及不可否定性等問題上，仍被公認為是現時最成熟的科技，而電子證書亦已可應用於多種電子政府及電子商業交易。然而，大部分應用方案仍只為小部分市民使用，在個人層面上亦多數只是其中一種可供選擇的認證方法。
  7. The seeding accounted for 91. 48 % of total number, and the mature tree of h : 5 ~ 7m class for 227 % whose density was just next to the seeding class. the results of intraspecific and interspecific competion formed the different individual height of taxus chinensis var. mairei population. the fractal dimension of taxus chinensis vsr. mairei were calculated on three indices : crown breath, base area, volume

    分析南方紅豆杉種群高度結構變化的原因認為，種間和種內對資源的競爭是引起其種群結梅粼七的主要原因，隨著高度增長，物種間不唯琳內對生存空間的競爭加劇，形成南方紅豆杉種群世代不同大， j 、個體的高度結構。
  8. Such model is as follows where xi ( t ), xm ( t ) denotes the density of the immature and the mature population predator a " at time t respectively ; y ( t ) denotes the density of the prey population y at time t. the mature predator of x can reduce tins death rate ; by hunting and feeding on the prey } "

    所示模型如下：其中， x _ m是捕食者的成年種群， x _ i是捕食者的幼年種群，且幼年不能捕食； y是被捕食者； e ~ （ - ）是由幼年到成年的轉化的概率；是成熟期。
  9. The model in chapter 1 describes that each of the two patches has the immature and mature predator populations, and there is another prey population only in one patch ; the model in chapter 2 describes that there are immature and mature predator populations only in one patch, and the mature predator can disperse between the two patches, and there is a prey population on the patch which has no immature population. because of the season ' s influence, it is reasonable to assume all the coefficients are periodic and almost periodic

    在第一章中，討論了在兩個斑塊環境下，每個斑塊都含有捕食者的幼年和成年種群，且在其中一個斑塊上存在另一個被捕食者種群；在第二章中，討論了僅在一個斑塊上含有捕食者的兩階段結構，而成年的捕食者可以在兩個斑塊之間擴散，且在沒有幼年種群的斑塊上，存在捕食者的明顯的食餌。
  10. " generally, the nations of the industrialized world can be characterized as mature energy consumers with comparatively slow population growth, " the eia, the energy department ' s analytical arm, said wednesday

    周三，能源部門分析權威eia稱： 「一般而言，工業化國家的特徵為成熟的能源消耗伴隨相對緩慢的人口增長」 。
  11. 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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