鳥體 的英文怎麼說

中文拼音 [niǎotǐ]
鳥體 英文
serpeant-head
  • 鳥 : 鳥名詞（同「犀」, 舊小說中用做罵人的話） male genital organ
  • 體 : 體構詞成分。
  1. Monitoring the whole avifauna ( community ) both in breeding season and non - breeding season. individual and population are good indicators of environment pollution, and there are still some questions about the guild monitoring and community monitoring. finally, we surveyed bird species and relative abundance in three areas of the upper reaches of minjiang river during both summer and autumn

    普遍意義上的用鳥類監測環境主要包括： 1監測某一種的繁殖期和非繁殖期（冬季）種群； 2監測不同種的種群動態； 3監測整個鳥類區系的種群動態和群落動態，也就是（ 1 ）種群及個體； （ 2 ）種團； （ 3 ）群落三個層次。
  2. In contrast, n - acetyl - d - galactosamine, sucrose, d - glucose, glycogen, d - mannose, l - fucose and fetuin had no inhibitory effects on hemagglutination. so the lectin activity in the humoral fluids of amphioxus is sh group - dependent and is specifically inhibited by various d - galactosides. also, the humoral fluids obtained from e. coli - injected amphioxus showed increased agglutinating activity against human b and o, rabbit, grass carp and toad erythrocytes, but not against human a and chick erythrocytes, hinting that there might be two types of lectins in amphioxus humoral fluids

    條紋斑竹鱉血清對懸浮在egta一mg一gvb緩沖液中的正常的兔血紅細胞、綿羊紅細胞、及部分哺乳動物、鳥類、兩棲類和魚類等代表動物的血紅細胞具有溶血活性;在gvbz十存在時對抗體包被的綿羊紅細胞具有溶血活性，而在edta一gvb緩沖液中不論是對正常的兔紅細胞或其他脊椎動物的紅細胞還是對抗體包被的敏感綿羊紅細胞都沒有溶血活性。
  3. This research work on bird striking has a long history and already got plentiful achievemellts in theories and experiments, howevef, still a long way no doubt waits to go for sophisticated research work on it more detailed to apply to airframe engineering quantitatively in combination wth the technical reformation of the birdstrike experimelltal system in our laboratory, this thesis deeply studies and analyses the numerica1 computation and simulation methods to birdstrike dynamic response problem based on finite - elemefit - method ( fem ) numerical emulation and modem large - scale scientfic computation software

    本文結合我公司鳥撞實驗體系技術改造項目，應用有限元數值計算模擬技術及現代大型科學計算工具，對鳥體撞擊飛機風擋結構的動力學響應問題進行了系統學習與研究探討，初步掌握了科學計算方法，獲得了計算模擬的實踐經驗，為今後深入應用大型科學計算手段進行撞擊類科學問題的研究以及深入應用於工程實踐奠定了強有力的工作基礎。
  4. In summary the major research work in this thesis can be drawn as follows : 1. the techncal data and research information from woridwide aviation history about bird striking to airframe have been collected and reviewed more carefully the evolutions of bird striking load models and fem numerical compatation methods to bird strike also have been sununarized. this informational research makes great help to position further thesis work scientifically 2

    本文研究工作可歸納總結為以下三個方面： 1 、較全面整理綜述了鳥體撞擊飛機結構在國內外航空史上的技術資料以及鳥撞問題理論與工程研究的歷史沿革，總結了撞擊載荷研究模型、有限元數值計算方法的發展歷程等，明確了本文研究工作的科學定位。
  5. The scielltific computational theories and methods on bird strike to the windshield of aircraft have been systematically studied and summed up in this thesis, such as fem comptltational principles and procedures to elastic dynamic problems under the conditions of small and non - linear finite deformation, 3d viscous elastic constitutive theory and incremelltal expression under the consideration of the rate effect of non - metallic materials like the aircraft windshield, and the numerical compatational principles and key constitutions for impact - contact dynamic subjects

    2 、系統學習並歸納總結了鳥體撞擊風擋結構問題中的科學計算理論與計算方法。按照鳥撞問題數值計算方法逐步深入的思路，系統總結了小變形結構動力學有限元數值計算方法、有限變形的幾何非線性有限元數值計算方法、粘彈性體非線性形變的本構物理關系；對于實施復雜結構有限元動力學計算的載荷增量方法提出了對newmark差分的改進以及進行材料與幾何非線性數值計算的細致步驟。
  6. The whole deformation process of the bird bodies and windshield glass are recorded using the high - speed camera and the vidicon

    採用高速攝影和高速攝像拍攝了鳥體和風擋玻璃的變形全過程。
  7. The deformation and failure mechanism of circular arc windshield glass is discussed. the possible location where failure can carry out is given

    討論了圓弧風擋玻璃被鳥沖擊變形破壞的機理，同時給出了圓弧風擋在經受鳥體撞擊時發生破壞的可能位置。
  8. It is a very important project for birds to strike aircraft structures in airframe designs and appiication practices, meanwhiie, which aiso possesses of the values of in - deep scientiflc research and theoretical exploration

    鳥體對結構的撞擊不僅是飛機結構設計工程及應用實踐中的重要課題，同時也具有深入的科學研究價值和理論探討意義。
  9. H5n1 has also been found in birds caught from the wild and traded internationally in large numbers to supply pet owners, hobbyists and zoos around the world, as well as being traded for food

    此外為滿足全球的寵物愛好者收藏者和動物園，以及市場對肉食的需求，大量野鳥被捕捉和進行國際貿易，這些野鳥體內亦發現h5n1病毒。
  10. Reference to the experent results, a good bird parameter is chosen

    參照實驗數據和曲線，選取了一組較為合理的鳥體參數。
  11. The response of blade due to two kinds material bird model impact are analyzed

    分析了兩種鳥體材料在不同接觸方式下對葉片響應的影響。
  12. By compared, the best densty of grid of blade model and bird model are established

    本文通過各種網格方案的對比，確定了最佳的葉片和鳥體的網格密度。
  13. The big questions is how these work and where they are located in the bird ' s body

    現有的大的問題是：這些鐘是如何工作的，它們又會安置在鳥體的什麼部位。
  14. Afcd has also issued advisory letters to fishermen to remind them not to bring any live poultry, live birds or bird carcasses into hong kong

    另一方面，漁護署亦已經發出指引予漁民，提醒他們不要攜帶活禽活鳥或鳥體進入香港。
  15. It is found from strain measurement results that the magnitude of strain along the direction of the symmetry line of windshield glass reverses to show re - striking in impact

    電測結果表明，沿圓弧風擋玻璃對稱線方向的應變發生反向，這表明鳥體可能與風擋玻璃發生二次撞擊。
  16. It is observed from the result of test that the bird bodies basically show liquid characteristics in the process of impact and that the relative pa rts of the plane affect the dynamic response ' of windshield glass

    從高速攝像和攝像結果中發現，鳥體在撞擊過程中基本表現出流體特性，飛機的附件對鳥撞試驗有較大的影響。
  17. The response of blade due to different material parameters of bird model is analyzed, and the reponse sensor is confirmed, then the relation between the reponse and bird material parameter is discussed

    分析了不同鳥體材料參數對葉片響應的影響，並且給出了各材料參數對葉片響應的靈敏度，進而評價了鳥體各材料參數對葉片響應影響的大小。
  18. 3. wth application of large - scale computational software anasys - dyna, the case of elastic impact to each other of two recta - ngular cross - section rods has been implemented and also compared with theoretical results, which maks good agreement and draws very helpful practical experiences to use some techncal parameters in the program. eventually, the a real - world aircraft windshield shell structure impacted by a flying bird has been simulated through fem numerical computation, and meanime, an engineering predical experimeni of bird sttiking to the windshield in some type of aircraft has been performed

    3 、應用大型科學計算程序anasys - dyna ，對彈性體碰撞進行了數值計算驗證並與理論結果對比，獲得了計算參數應用的實踐經驗；在此基礎上，進行了鳥體撞擊飛機風擋結構動力學響應的實際數值計算，與此同時安排了工程鳥體撞擊試驗，並就兩者計算結果給予了細致分析對比，獲得了良好的一致性結論。
  19. Although h5n1 is found in wild birds, there is no direct evidence linking epidemics in poultry in widely separated localities by wild birds migrating between them

    雖然野鳥體內發現有h5n1病毒，然而並無直接證據顯示野鳥遷徙與分佈各地的家禽爆發禽流感有關。
  20. A finite element model including full - scale circular arc windshield glass and the relative parts of the plane is established using ls - dyna3d v. 950 code in the computer simulation and is validated using the result from the test

    數值模擬中，建立了包括飛機相關部件的全尺寸有限元模型。鳥體採用ale描述。有限元模型採用ls - dyna進行了分析。
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