population number 中文意思是什麼

population number 解釋
人口數量
  • 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。
  • number : n 1 數；數字；〈pl 〉算術。2 （汽車等的）號碼；第…，第…卷，第…期〈通常略作 No （復數 Nos ），用於...
  1. The maximum entropy principle were used to follow population : ( 1 ) mutiallel population in all population that have the given gene distribution, the equilibrium population entropy reach it ' s maximum, the maximum entropy more than 0, and less than 2 nk ( k is the number of the allel ), and maximum entropy equal two times of the same locus gene entropy

    （ 1 ）復等位基因群體對具有同一基因庫的復等位基因位點，用最大熵證明了該位點所對應的所有群體中，平衡群體的基因型熵最大，其數值大於等於0 ，小於等於21nk （這里k為該位點等位基因數目） ，且等於該位點基因庫熵的兩倍。
  2. 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。
  3. Based on the field investigations and laboratory examinations, a study of the population of the epiphytic dolichomitriopsis diversformis ( mitt. ) nog. in fanjing mountain reveals that its habitats are different among different host trees, but that there lies the common habitat characteristics of not more than 2m height from the bottoms of host trees trunks, less light, high relative humidity, slow wind speed, slow evaporation speed and long time of remaining humid in middle - lower tree bark ; that it is one dioecious moss species, the morphology is remarkably different between its perichaetium and perigonium, the number of its perichaetia is much more than that of its perigonia, its perigonium is difficult to find out, its sporophyte is upright, its seta is long and thin, its capsule is regular long oval and its calyptra is cucullate

    摘要通過野外調查和室內觀測對貴州省梵凈山樹附生尖葉擬船葉蘚種群的研究表明，其生境因其所附生的樹種不同而有所不同，但具有共同特點：附生在樹干下部距地面2m高的范圍之內，光照弱、濕度大、風速小、蒸發量小、中下部樹皮保持濕潤的持續時間長；其為雌雄異株蘚種，雌、雄器苞形態差異明顯，雌器苞數量多，雄器苞數量少並且難于發現，孢子體直立，蒴柄細長，孢蒴規則長卵形，蒴帽兜形。
  4. In the normal population, the number of cgg repeats in fmr1 is highly polymorphic with the variation ranging from 6 to 54. such statistical data are obtained from caucasia people

    Fmri基因cgg重復次數在正常人中呈高度多態性，變異范圍n 6 sd ，這一變異在正常人群體中的分佈情況的統計數據主要來自高加索人群體。
  5. The populations of cathaica cavimargo are distributed in a number of heterogeneous habitats, from the hillside to the valley. these populations ( more precisely, subpopulations ) have pronounced variations in population density, shell biometric characters and shell colouration

    從山腰到山谷， cathaicacavimargo在許多異質環境中均有分佈，這些這些種群（或更準確地講亞種群）的密度、貝殼大小和貝殼顏色之間存在一定程度的差異。
  6. The number of divorcees will represent about 10 per cent of the adult population for the first time

    同時，離婚人數也會首次占據成年人總數的將近10的比例。
  7. Falkland islands fur seal perches on a rock outcrop off new island, where seafood - rich waters nourish a wildlife population diverse in nature and often astonishing in number

    圖中一頭福克蘭島海狗正棲息在新島外的一塊礁石上，這片海產豐富的水域滋養了種類繁多的野生動物群體，有些的數量非常驚人。
  8. A falkland islands fur seal perches on a rock outcrop off new island, where seafood - rich waters nourish a wildlife population diverse in nature and often astonishing in number

    圖中一頭福克蘭島海狗正棲息在新島外的一塊礁石上，這片海產豐富的水域滋養了種類繁多的野生動物群體，有些的數量非常驚人。
  9. By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent

    最後，本文還對絮凝動力學和絮體結構進行了研究，在前人研究的基礎上，針對高分子絮凝黃河泥沙，對絮凝過程作了一些符合試驗條件的假設，建立了顆粒碰撞頻率表達式，應用了顆粒數量平衡方程，從而建立了絮凝過程的動力學生長模型，模型計算結果與試驗數據對比表明，二者趨勢一致，在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和尺寸分佈的變化過程；對絮體結構的研究中，應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察，將絮體分為絮粒、絮團和絮網三個不同的生長階段，通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體，建立了絮體結構模型，計算得到的模型絮體分形維數基本與試驗中的實際絮體相符，在一定程度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。
  10. Except for small number of independent foundation schools, school became available to the whole population.

    除少數獨立基金學校之外，中學將對全民開放。
  11. Time courses of administration in these three groups were different ( group - 2 : day - ( - 3 ) day - 11 ; group - 3 : day - 0 day - 14 ; group - 4 : day - ( - 3 ) day - 0 ). group - 5 were treated with cyclosporine ( csa ) ( 10mg / kg / d ) and group - 6 were treated with rad ( 3mg / kg / d ) by daily oral gavage from day - ( - 3 ) to day - 11. in group - 2, the peripheral lymphocytes number and t cell population were monitored

    體外培養小鼠脾細胞，加入fty720 （ 10 m ） ，檢測dna改變及細胞膜表面annexinv結合率，還在cona刺激脾細胞增殖的培養體系中觀察了fty720 （ 10 m ）對t細胞表面cd25 ， cd69表達的影響。
  12. From the analyse of in - out index, we know that hetian population grows quickly and keeps such condition for a long time. this causes a large number of population and makes the population denominator effect obviously. overfull population affects the regional sustainable development, and causes contradiction between the population number and the land, food and all kin

    而人口是「 ppe 」怪圈中唯一的具有能動性的因子，又位於可持續發展的基礎層，人口數量問題給當地脫貧工作帶來了困難，所以要想達到全面小康社會的目標，解決和田不可持續問題就需要找出貧困怪圈的癥結，要首先解決人口問題。
  13. Nrr is 2. 36 ( higher than 1 ), and it shows that population reproduction is the expanding reproduction. if the population now develops toward the steady reproduction, population will grow at the rate of 28. 889 %, and then it make the big population number

    Nrr為2 . 36大於1 ，表明此時人口再生產類型是擴大再生產類型，如果人口保持此階段人口再生產狀況長期發展下去，人口將按一個固定增長率k = 28 . 889發展下去，產生巨大的人口基數。
  14. Because most people live in the oasis, the oasis population density gets the 169. 47, higher than the chinese average standard ( 129. 4 ). under the condition of bad exist environment and limited exist resources, more population means it is difficult to get rid of poverty. population number becomes one of most importane factors to deteriorate the arid poverty

    而和田人口密度（ 10 . 27人/平方公里）遠大於乾旱區人口密度極限（ 7人/平方公里） ，由於人口都集中在綠洲，綠洲的人口密度（ 169 . 47人/平方公里）超過全國平均水平（ 129 . 4人/平方公里） ，由此，在生態環境惡劣、生存資料有限的情況下，和田人口數量過多使其更難以擺脫貧困，人口數量成為加劇乾旱區貧困的基本因子之一。
  15. Based on the statistical data of road traffic accidents, population, number of vehicles, total lengths of highway, passenger and freight transport amount of 1990 - 2000 in china, it is known that the freight transport amount, freight turnovers and passenger transport amount are the main con - elated factors influencing the traffic safety, and number of casualty is the main characteristic and indicator of toad traffic accidents

    根據1990 - 2000年全國道路交通事故以及全國人口、機動車、公路里程和客貨運輸量等主要相關因素統計資料可知，貨運量、貨運周轉量和客運量是影響交通安全的主要相關因素，死、傷人數是交通事故的主要特徵和指標。
  16. ( 3 ) chapter v. plasma characteristics of rf ion source is investigated. a zero - dimensional numerical dynamic colisional radiative atomic and molecular ( cram ) model is suggested to simulate the microphysical process. all species " population number densities in plasma are calculated in non - thermodynamics equilibrium condition, and proton content in extracted ion current are measured with 60 ? magnetic analyzer

    （ 3 ）提出了高頻離子源等離子體的零維cram模型（ collisionalradiativeatomicandmolecularmodel ） ，計算了非平衡態（ nte ）下等離子體中分子、電子、離子、基態原子、激發態原子等粒子濃度，並在zf - 200kev中子發生器上，用60磁分析器實驗測定了引出束流的質子比。
  17. In c & c + + ga program, using the parameter num equal to population number will make ga compulate more efficiently. 5. converting nonlinear equations solution to ga optimum problem, and then the problem is discused in ga model, fitness, coding, operator & parameter, convergence critericm multi solutions 6 aspects

    首次在c與c + +的遺傳演算法程序中，提出了隨機數產生周期等於群體規模的參數取值方法，實例計算說明，演算法的計算效率能提高一倍左右。
  18. The harmfulness of l. lagurus is a serious problem for long time, because of undulation of population number and perniciousness

    由於其種群數量變動較大，加之它對草場的危害嚴重，長期以來一直困擾著人們。
  19. Along with the economy development, human activities not only straightly threatened the ecological environment but decreased the population number of anura

    隨著經濟的發展，人類活動直接威脅著無尾兩棲類的生存環境，也造成其種群數量大幅度減少。
  20. Logistic model applied in the forcast of the totol population number in heilongjiang province

    模型在黑龍江省總人口預測中的應用
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