源匯分佈 的英文怎麼說

中文拼音 [yuánhuìfēnbù]
源匯分佈 英文
source-sink distribution
  • 源 : 名詞1. （水流起頭的地方） source （of a river）; fountainhead 2. （來源） source; cause 3. （姓氏） a surname
  • 匯 : Ⅰ動詞1 （匯合） converge 2 （聚集; 聚合） gather together 3 （通過郵電局、 銀行把款項劃撥到別處）...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  1. Based on the distributions of these species the paper puts forward 5 basic characteristics of bailongjang woody plants flora, i. e. 1. diverse species, 2. ancient origin, 3. temperate nature and relations of the tropics, 4. here mixing various woody plants from different districts, 5. 20 endemic genera to china and 25 autochthonal endemic species to bailongjiang

    根據這些種的地理分佈，提出白龍江流域木本植物區系的5個基本特徵： 1種類豐富； 2起源古老； 3溫帶性質； 4南北交匯，東西兼容的過渡特徵； 5特有植物繁多。
  2. The way to calculate the added - mass and the damping coefficient of the ship sections by conformal mapping and pulsating source method

    重點介紹了用多級展開法和源匯分佈法求解船體切片段的附加質量及阻尼系數。
  3. The analysis of the large - scale synoptic situation shows that strong precipitation is closely related to the explosion of monsoon and the intensification of cross - equatorial flow which bring a lot of vapor and meet with cold masses at the eastern of northwest district on 8th, june causing extremely heavy rainfall ; that subtropical high - level jet at 200hpa, subtropical high at 500hpa and low - level jet at 850hpa are the weather backgrounds favorable to strong precipitation ; that the pattern of eastern highs and western lows and the establishment of a low - level jet and the coupling between upper - and low - level patterns that determine that the rain occurred in the east of the northwest china ( on average, this is the rainy season for the south of china, but not for the northwest china ) ; that water vapor comes from southerly and easterly flow which converge at the eastern of northwest district with convergence mainly in lower levels and pbl ; that the high value of the whole - level apparent heat source < q1 > is near the area of large rainfall in the direction of northeasterly - southwesterly agreeable to shear line very well and the condensation latent heat releasing is main heat source with vertical advection item playing key role in q1 and q2 ; that there is a vertical secondary circulation crossing low - lever jet whose ascending branch is at the area of large rainfall ; that the construction of convection instability and conditional symmetry instability results that there is not only deep thermal instability, but also moisture influx and triggering mechanism of thermal instability causing strong torrential rain

    作為對比，本文還對2002年6月24 - 25日發生在北京地區的強地形雨進行了分析，並討論陜南、北京地區兩地暴雨的異同點以及地形作用的共性和個性，為兩地暴雨預報提供有益的參考，得出了一些很有意義的結果： 1大尺度環流背景分析表明： （ 1 ） 「 02 . 6 」強降水與6月上旬越赤道氣流和季風爆發密切相關，攜帶大量水汽的偏南氣流與冷空氣於6月8日交匯在西北地區東部，導致了這次強降水的發生； （ 2 ） 200hpa的副熱帶西風急流、 500hpa副高以及850hpa的低空急流的配置非常有利於本文分析之陜西強降水的發展與維持。大尺度形勢分析表明，東高西低形勢場、低空急流的建立和高低空形勢的配置決定了這場降雨出現在西北地區東部。與暴雨區相聯系，存在一支橫越低空急流的經向垂直環流，暴雨區處于該垂直環流的上升支； （ 3 ）偏南和偏東氣流水汽通道在西北地區東部交匯，水汽的輻合積聚主要在對流層低層和行星邊界層內完成； （ 4 ）整層的視熱源< q _ 1 >高值區在暴雨區附近呈東北-西南向分佈，與切變線走向非常一致，降水產生的凝結潛熱釋放是強降水區大氣的主要熱源。
  4. Visual modflow computer code was selected to simulate heads distribution, calculate the zone budgets of the area, evaluate the effect of external stresses on the groundwater head, to determine how much water would be diverted from the river as the result of pumping and to demonstrate how the groundwater model can be used as a comparative technique to formulate a new approach for the quantitative groundwater vulnerability assessment in order to optimize utilization of the resource

    在分析河床沉積物滲透性對模型結果的影響時，採用了實際野外水文地質條件而不像前人所採用的假想模型。本論文用visualmodflow建立數值模型模擬預測了地下水水頭分佈，計算區域的水均衡，分析源匯項對地下水水位的影響。在此基礎上進行了全區的地下水脆弱性評價，為地下水資源的合理開發利用提供依據。
  5. By using the method of wave source distribution, sources were distributed along the boundary of the harbour, then by using the matching conditions of the inner and outer fields on the entrances of the harbour, the strength of the sources was calculated

    利用源匯分佈法，在港灣邊界上布置源匯，並在入口處利用內外場的匹配條件，來求解置於港灣邊界上的源強，進而求得港灣內的整個流場。
  6. Then this model is chose to compute the cavitating problem. the panel method employs sources to solve the problem of partially - cavitation and super - cavitation for axisymmetric body. the sources are distributed on the bodies and cavity surfaces

    通過在回轉體表面和空泡表面分佈源匯的方法，建立了求解回轉體局部空泡與超空泡流場的數值方法。
  7. In order to predict hydrodynamic characteristics a computational system is developed including determination of the pressure distribution on a wing section by use of the conformal mapping method and panel method respectively and of the flow in boundary layer according to the thin shear layer approximation ( tsl ) for navier - stokes equation approach. the wing sections of naca4412 and naca0012 are applied to test the computational system. the numerical inspection shows that the panel method with better precision and the momentum and the displacement thickness of boundary layer can be used to complete this calculation

    本文分別用守屋的保角變換法和基於源匯渦分佈的面元法，建立了計算槳葉表面壓力分佈的數學模型；應用納維-斯托克方程的薄層近似理論模式和有限差分數值方法，建立了計算機翼表面邊界層內部流動的數學模型；應用槳葉表面邊界層內部粘性流動和外部勢流流動在邊界上的匹配演算法，建立了槳葉表面二相流流動的計算方法和相應的計算機程序。
  8. In the thesis the low drag - low noise optimization of the vehicle main form design is realized, main accomplishments are as follows. researched the knowledge of drag and flow noise, the parameters of the boundary layer are calculated by the hess - smith method and boundary layer momentum integral method. the calculation of the length of transition zone and change in boundary layer displacement thickness between laminar and turbulent states in the transition is improved, then the drag coefficient and self - noise from the transition zone are calculated as the objective functions of the optimization

    主要研究內容和成果如下：對航行器繞流流場進行分析，深入研究了阻力和流噪聲產生機理，建立了阻力系數和自噪聲的評估數值計算模型；採用物面分佈源匯法和邊界層動量積分法對繞流流場的流體動力參數進行計算，改進了轉捩區長度和邊界層位移厚度的計算，應用於航行器頭部駐點自噪聲的計算；最後設計了阻力系數和自噪聲數值計算程序模塊。
  9. The surface panel method has been applied to predict the hydrodynamic performance of highly skewed propeller. the surface of propeller and its trailing vortex are discreted by a number of small hyperboloidal quadrilateral panels with constant source and doublet distribution. for highly skewed propeller, the conventional method generating grid oriented along constant radii will result in a high aspect ratio and a high skewness and a twist panel near the propeller tip on blade surface, which result easily in incorrect calculation results of velovity on blade surface, even in iteration divergence and calculation failure. a “ non - conventional grid ” is developed to acoid these problems. this grid can effectively solve the problem of the calculation and convergence for highly skewed propeller. the non - linear kutta condition of equal pressure on upper and lower at the trailing edge is executed by the iterative procedure. by sample calculating, the obtained results are satisfied the experimental data

    採用面元法預報大側斜螺旋槳水動力性能，螺旋槳表面及尾渦面離散為四邊形雙曲面元，每個面元上布置等強度源匯和偶極子分佈.對于大側斜螺旋槳而言，槳葉表面採用常規的等半徑網格劃分方法在近葉梢處將導致大展弦比、大側斜和扭曲面元，這容易使槳葉表面速度的計算結果不正確，甚至會導致迭代過程發散及計算失敗.文中建立了一種「非常規網格」劃分方法，能有效地解決大側斜螺旋槳的計算和收斂問題.槳葉隨邊處通過迭代實現非線性等壓庫塔條件
  10. Firstly, this dissertation estimated the size of carbon source ; sink and net carbon sink of farmland ecosystems in china costal regions ( including ten provinces ) with statistic data from 1981 to 2001, which include data of crop yield and agricultural consumptions. then analyzed the temporal - spatial differences of carbon source, sink and net carbon sink of china costal farmland ecosystems. secondly, estimated npp ( net primary productivity ) of farmland ecosystems in china costal regions with per month noaa - avhrr ndvi ( normalized difference vegetation index ) data and estimation model

    本文首先運用1981 - 2001年的統計資料（作物產量和各種途徑的農業投入數據） ，對沿海十省區農田生態系統碳源匯及凈碳匯進行了估算，並分析了其時空差異；然後運用1998年逐月ndvi數據通過建模對沿海地區農田生態系統npp進行了估算，並分析了npp分佈與農田生態系統碳吸收的相關性；最後通過對農田生態系統碳源匯的影響因素分析，提出了不同的農田生態系統碳增匯減排技術。
  11. The duct and it ' s vortex is discreted by a number of small straight quadrilateral panel. constant source and doublet distribution is placed on each panel on the surface of body, and constant doublet distribution is placed on each panel on the surface of vortex

    以面元的幾何形心為控制點，在每個物面面元的控制點上布置等強度的源匯分佈和偶極子分佈，每個尾渦面面元控制點上布置等強度的偶極子分佈。
  12. The sources are distributed on the bodies and cavity surfaces, a computer program is written to display curves of the pressure coefficient value and velocity value of the supercavity surface

    通過在回轉體表面和空泡表面分佈源匯的方法，建立了求解回轉體超空泡表面壓力系數和速度的計算公式。
  13. Source - sink distribution method for solving hydrodynamic coefficients of asymmetrical section

    源匯分佈法求解非對稱剖面水動力系數
  14. By combining the observed pco2 data and the cogrediently monitored hydrological, chemical and biological data, the distribution characteristics, their influencing factors and the r easons for the spatial change of co2 sources and sinks are discussed

    對東海春、夏、秋、冬四季表層海水的pco _ 2 ，從水文、化學和生物學等方面對其分佈特徵、影響因素、以及co _ 2源、匯的空間變化原因進行了表徵。
  15. The expansion of total volume of foreign trade and the improvement of export mix and the change of trade patterns in china benefit mainly from enterprises with fdi. in turn, the global and domestic distribution of foreign trade is related with the sources and allocation of fdi. fdi benefits the improvement of international competitiveness of our exports, income and double - factorial terms of trade, and contributes a lot to cover funds shortages and increase foreign exchange reserves

    中國外貿的總量擴張、出口商品結構的改善和我國貿易方式的變化主要得益於外商直接投資企業，而中國外貿的全球區域和國內地區分佈又與外商直接投資來源與投向密切浙江大學學位論文fdi流入與外貿擴張相關;外商直接投資的外貿增長效應的變化，緣於1992年後外商直接投資的動機的改變;引進外商直接投資不僅有利於我國貿易品國際競爭力的提高，收入和雙要素外貿條件的改善，而且它在彌補資金不足、增加外匯儲備方面也作出了相當大的貢獻。
  16. In the whole plane with less county ( or vertical distribution ) land city have concentrated from tropical valley the ecological landscape to the moss original tape of high mountain, biological species are rich, numerous, district is complex, the animal and plant that collected is the epitome of our country that goes to north from south, is known as " natural gene storehouse ", " alive museum ", " mammal ancestors break up development originate land ", " the south north corridor of animal and plant ", " the century glacier campaign period of 4th biological refuge "

    在全縣較小的平面（或垂直分佈）地城內濃縮了從熱帶河谷到高山苔原帶的生態景觀，生物物種豐富、繁多，區系復雜，匯集的動植物是我國從南到北的縮影，被譽為「天然基因庫「 、 「活的博物館」 、 「哺乳動物祖先分化發展的發源地「 、 「南北動植物走廊」 、 「第四紀冰川活動時期原生物避難所」 。
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