阻力界限 的英文怎麼說

中文拼音 [zǔlìjièxiàn]
阻力界限 英文
drag end
  • 阻 : 動詞（阻擋; 阻礙） block; hinder; impede; obstruct
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 界 : 名詞1 （相交的地方; 劃分的界限） boundary 2 （一定的范圍） scope; extent 3 （按職業、工作或性別等...
  • 限 : Ⅰ名詞（指定的范圍; 限度） limit; bounds Ⅱ動詞（指定范圍, 不許超過） set a limit; limit; restrict
  • 阻力 : 1 （阻礙事物發展的外力） obstruction; resistance 2 [物理學] resistance; drag; drag force; nowel; ...
  • 界限 : 1 （分界） demarcation line; dividing line; limits; bounds; boundary; range; limitation 2 （限度...
  1. The numerical algorithm of solving the adjoint equations for different design cases have been developed by using finite volume methodology which is usually used to solve the flow governed equation. it includes the some important aspects, such as flux formulation, wall and far - field boundary treatment methodology, dissipative term formulation, etc. after the solution of the adjoint equations is obtained, the derivatives of the cost function with respect to all the design variables can be evaluated with the same operation. this can yields a significant saving over the other gradient - based techniques when there are many design variables

    （ 3 ）進行了應用控制理論和三維歐拉方程的機翼氣動反設計研究，以及有升力約束情形下機翼跨音速減阻問題研究，分別推導了相應的共軛方程及邊界條件數學表達形式，研究與發展了三維共軛方程的有限體積數值求解方法，及相應梯度公式的數值求解方法，通過對計算網格生成、流場計算、共軛方程數值求解、梯度求解和優化演算法等多方面的有效結合，成功發展了三維機翼的氣動反設計和跨音速減阻優化設計程序，成功地進行了多個設計算例研究。
  2. Despite recent pledges to cooperate to end the humanitarian crisis the u. n. has called the worst in the world, the u. n. said the sudanese government has hampered access to hungry darfuris by restricting relief flights and causing " major delays " in deployment of aid workers

    盡管近來的保證，要協力終結這項聯合國宣稱世界上最嚴重的人道危機，聯合國表示，蘇丹政府透過限制空投飛機，導致救援人員的調度受到很大的延遲，來阻礙世界各國的關注。
  3. Based on the analysis and calculation of ship resistance, according to the main factors influencing the resistance, such as sailing speed, water depth and ship draft ratio, and coefficient of sectional form, the deepwater, shallow water and restricted channel are defined by the coefficient factor

    摘要通過對船舶阻力的分析和計算，根據影響阻力的主要因素，航速、水深與船吃水比、斷面系數，由換算系數來界定深水、淺水與限制性航道。
  4. Working resistance and safety margin of long - wall support in shallow coal bed

    淺埋煤層長壁開采支架阻力及安全界限
  5. The result of macro - quality experiments show : mineral admixtures markedly slow the hydrating velocity of cement slurry, decrease and delay the hydrating max - temperature, in which steel slag is more effective ; expansive agents compensate concrete shrinkage, enhance the concrete dense degree, strengthen the interfacial layer between fiber and cement matrix and improve the physical mechanics qualities of acic ; minimal admixtures markedly improve the concrete workability property, increase the concrete later intensity & density and the capability of anti - chemical attack and anti - permeability ; hybrid fiber reinforces the toughness of obviously acic by the means of anti - cracking effect of fiber with different sizes and different properties in the corresponding construction levels

    實驗結果顯示：鋼渣摻合料能顯著減緩水泥漿體水化速率，降低砂漿的水化溫升並延遲最高溫升時間；補償混凝土收縮，提高混凝土密實度，加強纖維與水泥石的界面粘結，增強混凝土力學性能，但不能明顯改善混凝土韌性。混雜纖維通過纖維的不同尺度與不同性質在相應的結構層次上產生阻裂效應，增韌鋼渣防滲抗裂混凝土；增加混凝土的破壞極限能，極大提高混凝土抗彎曲能力和韌性指數，改善混凝土脆性。
  6. It is a basic need for writing which is included in chinese standards for middle school and the directions for the entrance examination for college. lt has a profound and lasting significance for setting up a new style of writing, telling the truth emotionally and improving the personality accomplishment of youngsters. but the author recognizes that the teaching methods of writing with true feelings in ten linked ways with four steps has only been at the beginning of probing and experimenting. there is a lot of resistance coming from the concept of education, students and society

    最後，本文認為真情實感作文教學是十分必要的，這是《中學語文課程標準》和全國高考「考試說明」中對作文教學的基本要求，對樹立說真話、吐真情的作文新風，提高青少年的人格素養具有深遠的意義。但本文承認「真情實感作文四步十環教學法」僅僅只是處於一實驗摸索階段，還存在來自教育觀念、學生、社會等方方面面的阻力，存在其局限性，還沒有得到教育界廣大同仁的認可和共識，因此，此教學法還有待在今後的教學實踐中進一步完善、發展。
  7. For the obvious yield point of angle steel, the critical frictional resistance could be regarded as ultimate pullout capacity

    對具有明顯屈服點的鋼材，在實際施工中，可以把摩阻臨界值作為極限拉力。
  8. Since traditional certainty methods have some instinct limitations, this paper comprehensively considers the uncertainty of the friction strength value between the nail and soil, the strength factor of soil, and so on. after dealing with the factors and their relation, the reliability of the soil - nail retaining structure is analyzed and its calculating formula is educed

    鑒于傳統的確定性分析方法的局限性，本文綜合考慮了土釘與土體之間的界面摩阻力強度值及土體強度參數等的不確定性，經過對各參數及參數間關系的處理，對土釘支護結構的內部穩定性進行了可靠度分析，得出可靠度的計算公式。
  9. Since traditional certainty methods have some instinct limitations, on the basis of author ' s design practice of many years, this paper comprehensively considers the uncertainty of the friction strength value between the nail and soil owing to construction. the force analysis, entire stability, inner stability and outer stability of the soil - nail retaining structure is analyzed in reliability, and then the convenient design method of soil - nail retaining is obtained

    鑒于傳統的穩定性分析方法的局限性，本文結合多年的工程設計實踐，綜合考慮了土釘與土體之間的界面摩阻力強度值由於施工的不確定性，對土釘支護結構的土釘受力分析、土釘體整體穩定、內部穩定、外部穩定性進行了可靠度分析，得出一套簡單實用的土釘支護工程設計方法。
  10. So the various time response histories of structures are realistically described and the seismic field - movements of the system are simulated under different working conditions such as various earthquake waves elasticity or elastoplasticity of soil and pile - soil contact etc. the linear or nonlinear characteristics of histories response of upper - lower structural parts under seismic are prominently re - shown by means of gradual meshing finite - elements for near - far fields with the 3d spring - dashpot boundary elements. based on the above analysis, many designs and tests about interactive structures may be developed accurately

    該方法的最大特點是結合近、遠場域的有限單元網格漸分技術，通過邊界三維彈阻單元的設置，可以突出再現上、下部共同作用體系在地震作用下的全時程線性、非線性反應特性，從而為精確開展各類結構動力相互作用的設計與試驗測試奠定了一定的理論基礎。
  11. This statement was inspired by the white house ' s own national space policy, which declared that the us should have unimpeded supremacy in space, and will undermine other great powers from usurping this freedom

    他的發言與白宮國家安全方針是一致的，白宮過去宣稱美國在空間的領先地位是不容超越和阻止的，任何試圖超越這種界限的力量都將被摧毀。
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