河長定律 的英文怎麼說

中文拼音 [hézhǎngdìnglǜ]
河長定律 英文
law of stream length
  • 河 : 1 （天然的和人工的大水道） river 2 （指銀河系） the milky way system; the galaxy 3 （特指黃河） t...
  • 長 : 長Ⅰ形容詞1 （年紀較大） older; elder; senior 2 （排行最大） eldest; oldest Ⅱ名詞（領導人） chief;...
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 律 : Ⅰ名1 （法律; 規則） law; rule; statute; regulation 2 （律詩的簡稱） short for lüshi 3 （姓氏） a ...
  1. Under general geological study of exploratory development of coalbed gas and underground gasification of coal bed in eastern depression of liaohe basin, authors apply the basic principle of coal geology and the data of vitrinite reflectance and technical analysis of coal to ascertain that coal classification are dominantely the lignite, long - flame coal and gas coal of coal - bearing upper section of third member of shahejie formation, and then dissertate the variational regularity between coal rank and buried depth in vertical and otherness of vertical limit of coal rank in different coal - rich regions

    摘要運用煤田地質學基本理論和煤的鏡質組反射率值及工業分析等有關數據，確定了遼河盆地東部凹陷古近系沙三段含煤亞段的煤種主要為褐煤、長焰煤和氣煤；進而闡述了該煤段垂向上煤級與埋深的變化規律性、不同賦煤區各煤級垂向界限的差異性。
  2. First, according to measured data and literature, the river channel evolution rule and its reasons in the southern branch of the yangtze river are discussed from the perspectives of historic evolution, recent evolution and the tendency prediction of river channel evolution. besides, the local reservoir has been studied from the changes in thalweg and section as well as the calculation of local erosion and deposit. consequently, the stability and feasibility of reservoir construction in the river section are approved

    首先根據大量實測資料及文獻資料，就歷史變遷、近期演變、河演趨勢預測等方面，初步探討了長江口南支河段河道演變規律及原因，並具體就深泓線的變化、主槽斷面變化、局部沖淤計算等方面對擬建水庫局部區域進行了分析，論證了工程河段建設水庫的穩定性及可行性。
  3. Hydrology regime and river channel evolution become complex because of double influences of river flow and tide. there is little appropriate method so far. therefore, when the impact us assessed of water project on flood control, the following aspects should be focused on, river evolution and stability of project - sections, design tidal level, flood - tide combination scheme, pre - project and post - project impacts on river channel, water level and flow condition

    長江河口段為潮流河段，徑流潮流的雙重作用使得區域水文情勢、河道演變規律錯綜復雜，開展防洪影響評價研究時，河道演變及工程段穩定性分析，設計潮位的分析計算，洪潮組合方案擬定，工程前後對河道及水位流態影響的模擬等均是目前尚無十分成熟的方法，需要進一步研究的課題。
  4. The study on the development model of agricultural science and technology park : make a comprehensive survey of the agricultural science and technology park development, statistical data on the agricultural science and technology park in the year of 2002 was applied to do macro analysis, with the result of development problems and propose the settlement. this study is conducted based on typical case study and theoretical analysis from the aspects of growing background, overall effect, operating model and the driving force in four national agricultural science and technology parks : shandong vegetables demonstrating park, henan xuchang national park, gansu dingxi park and beijing shunyi three - hi agricultural pilot model area. then analyse and sum up the general laws and different points. the creative research of this paper lines in raising the new theory of sci - tech agricultural industry organization for the first time, build up the theory analysis framework for agricultural science and technology park ; according to the theory analysis framework, sum up the development general model from choosing the national agricultural park in typical region ; build up th

    運用典型案例剖析與理論分析總結相結合的方法，分區域按照發展成效在全國范圍內選取山東壽光蔬菜高科技示範園、河南許昌農業科技園區、甘肅定西旱作生態型農業科技園區和北京順義三高農業示範區，從園區的成長背景、建設發展的總體成效、運作模式和園區發展的動力等幾個方面對農業科技園區的發展進行了深入研究，並對園區發展模式的共性規律和差異之處進行了分析歸納；本文創造性的研究在於：首次提出了科技農業產業組織理論，構建了農業科技園區理論分析框架；根據這一理論分析框架，通過選取典型區域的國家農業科技園區進行實證研究，總結歸納了園區發展模式共同特徵並進行了差異分析；首次提出了適用於不同評價對象和評價意圖的三套國家農業科技園區評價指標體系，並創造性運用多元統計分析方法和系統分析方法對國家農業科技園區進行綜合評價。
  5. Comparing with the current observations, which include the number density distribution in space, mass function, etc., the so - called standard modes for both the power law and gaussian cluster initial mass functions are selected among many runs of simulations. the deviation from the standard modes, which is resulted from the change of the parameter for the initial conditions, is discussed in detail. the discussion of the model parameters is also presented although they are adopted as the typical values based on previous work

    對應一定的初始分佈我們發現無論是冪律的還是對數高斯的球狀星團初始質量譜經過長時間的動力學演化都會得到和現在銀河系觀測到的球狀星團系統相符的對數高斯的質量分佈；動力學演化會明顯地改變球狀星團系統的空間密度分佈，靠近銀心區域的球狀星團瓦解得更多；經過動力學演化后的球狀星團速度分佈函數在靠近銀心的區域明顯得不同於初始分佈，初始擁有較大軌道偏心率的球狀星團更容易瓦解。
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