繞射 的英文怎麼說

中文拼音 [ràoshè]
繞射 英文
diffraction
  • 繞 : 繞名詞1. [書面語] （彎曲） bend2. （姓氏） a surname
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  1. And our demo nicely shows the motion of water waves : reflecting, intervening, circumambulating

    實驗結果表明，水波的運動是逼真的。我們成功地模擬了水波的反射、疊加和繞射現象。
  2. Lc test method for crystallite size of calcined petroleum coke by x - ray diffraction

    用x -射線照繞射法測定煅燒石油焦中結晶尺寸
  3. Problems of diffracting effects of nonlinear water waves on porous structures

    可滲透型結構的非線性水波繞射作用問題
  4. The major work is as follows : solution of two dimensional radiation or diffraction fluid field. this thesis extends multipole expansion method to adapt to disturbed fluid fields of 2d floating bodies with asymmetric forms, which is applied with symmetric forms originally. and given the solution of potential velocity and hydrodynamic pressure of radiation and diffraction fluid fields, which is incited by a 2d arbitrary form, actual application field of the multipole expansion method has been enlarged

    關於二維擾動流場的求解：將通常僅適宜求解具有對稱形狀二維物體擾動流場的多極展開法（保角變換方法）擴展至非對稱形狀二維物體，給出了任意形狀二維物體的輻射和繞射流場的速度勢及水動壓力的頻域解，進一步擴大了多極展開法的實際應用范圍。
  5. Abstract : the more detailed mathematial derivation and analysis of watson transformation in diffraction theory of ground wave is made by two different method. in derivation necessary and approximate conditions requred to make the transformation are specially discussed

    文摘:採用兩種不同的方法對地波繞射理論中的瓦特松變換問題做了較詳細地數學推導，並著重討論了做瓦特松變換的要求的必要條件與近似條件。
  6. The other is that the conducting body is electrically large. we can solve this case by high frequency methods or hybrid methods of high and low frequency for example the hybrid of mom and gtd

    另一種情況是金屬多面體是電大尺寸，此時可以通過高頻或高低頻混合的方法來解決，例如矩量法和幾何繞射混合（ mom gtd ）的方法。
  7. The model is based on the theory of physical optics ( po ), geometry theory of diffraction ( gtd ) and uniform theory of diffraction ( utd ), and it can compute and analyze the propagation of em wave in microcellular environments by using improved ray tracing method

    該模型基於物理光學（ po ） 、幾何繞射理論（ gtd ） 、一致性繞射理論（ utd ） ，利用改進的射線跟蹤法對微蜂窩中電波傳播特性進行了數值分析計算。
  8. Since the problem of feature extraction from 2 - d radar data can be approached as a parametric modeling and parameter estimation problem, the 2 - d type - discriminated geometric theory of diffraction based ( td - gtd ) model that discriminate between the localized and distributed scattering centers of the target is presented

    在對目標散射中心的建模與參數估計中，提出採用更貼近散射機理的、特徵含量更為豐富的二維散射中心模型?區分局域性與展布式散射中心類型的幾何繞射理論（ td - gtd ）模型。
  9. This method applies the extended strip theory to establish the nonlinear ship motion equations in regular head seas, obtains stable time course by resolving in time domain, and then pressure vectors will be available. the pressure includes static pressure, incident waves pressure, diffraction pressure, radiation pressure, and wave impact pressure, and changed with instantaneous draft of each intersection

    該方法應用擴展的切片理論建立迎浪規則波中船舶非線性運動方程，通過時域步進求解獲得船舶剛體運動的穩定時歷，進而給出與船體各橫剖面瞬時吃水相對應的靜水壓力變化、入射波壓力、繞射壓力、輻射壓力和波浪沖擊壓力諸分量。
  10. Problems on diffraction of second - order multicolored water wave by porous structures in stratified ocean

    層化海洋中二階多色波對可滲透結構的繞射問題
  11. When the diffraction process is completed the overpressure loading on the front and back faces are essentially equal.

    當繞射過程完成時，作用於正面和背面的超壓荷載基本上相等。
  12. Test method for calibration verification of laser diffraction particle sizing instruments using photomask reticles

    用光掩模原版校準檢驗激光繞射粒子定尺寸儀器的試驗方法
  13. On the boundary value problem of the second order stationary wave diffraction potential

    關於二階波浪繞射勢穩態解邊值問題
  14. 2. it simplified the tlp as vertical floating arrays, did some work about second - order nonlinear diffraction wave force on tlp

    2 .將結構簡化為直立浮筒柱群，研究了平臺本體上波浪的二階非線性繞射問題。
  15. In order to obtain the complex rcs of the target quickly in high frequency band, the graphical electromagnetic computing software, greco, is used. the modification of the computing kernel code is presented. the judgement of edges of complex targets is more sufficient and the computation of edge wave based on physical theory of diffraction ( ptd ) is more exact after the modification

    為了可以準確地預估雷達目標的rcs ，我們對于航天部207所的圖形電磁計算軟體（ greco ）進行了進一步的開發與包裝，用borland公司的c + + builder開發了更加易於使用的基於windows操作系統的新版greco ，並且在考察了原有的greco計算內核之後，結合計算機圖形學方面的理論，對greco的內核代碼進行了改進，整體上使得邊緣繞射場的計算結果更加準確。
  16. An electron beam does not diffract at atomic scales, so it does not cause blurring of the edges of features

    由於電子束在原子尺度不會繞射，所以它不會使得圖案細節的邊緣模糊。
  17. The hydrauli c model of gradual dike - break simulates numerically the 2 - d flow of gradual dike - break waves. it shows the variation of flow field on breach, and the complicated flow characteristic of the propagation, diffraction, reflection and deformation of the dike - break waves. the hydraulic model can realistically simulate the burst process of dike, and computational accuracy is satisfied with the engineering demands

    本文建立逐漸潰堤的水力模型首次對二維逐漸潰堤波的流動問題進行了數值研究，揭示了逐漸潰堤過程中潰口處流場的變化情況，以及潰堤波的傳播、繞射、反射及變形的復雜運動特徵，能較好地模擬實際工程中的潰堤失事，模擬比較逼近於真實潰決過程，計算精度可滿足工程要求。
  18. The computer speed is speeded up. the numerical results of the present models are in agreement with the theoretical solution and those of physical models. systematical numerical tests show that the present models can reasonably simulate the wave transformation, such as shoaling, refraction, diffraction, reflection, effect of currents and so on

    比較詳細的模型驗證與應用表明，模型的數值模擬結果與解析解、物模實驗值吻合良好；可以較好地模擬波浪傳播過程中的淺水變形、折射、繞射和反射等多種現象；能正確合理地反映水流對波浪傳播的影響。
  19. Since the dichromated gelatin has a higher diffraction efficiency in all holographic recording materials, the aim of this research is to use dichromated gelatin as the recording material and to make use of the principle of holography to design holographic optical components, especially in fabrication procedure of dichromated gelatin film and in experimental technique to form a high diffraction efficiency using different angular exposure method

    為了產生優質的聚焦能力與效率，本研究採用目前具有最高繞射效率（ 80 ~ 90 % ）的重鉻酸明膠材料作為感光劑，除了自行調制藥劑比例成分，並依嚴格的製作步製成重鉻酸明膠全像片外，並採用不同角度重覆曝光方式改良干涉式波帶板無法自動追蹤的缺點，經過多次試驗與改進，藉以形成具備高繞射效率和自動追蹤功能的全像光學波帶板。
  20. The calculated drafts covers the whole possible ship draft in the large amplitude motion ; secondly, the research creates and solves the ship large amplitude motion equations. on the one hand, the actual calculation takes into account the coupling between the different motion modes, on the other hand, in the process of calculation of the ship hydrodynamic coefficient, it considers the influence of the nonlinear factor. the hydrodynamic coefficient used in the calculation of froude - krylov force, diffraction force and radiation force changes instantaneously following the draft, and the hydrostatic buoyancy is computed very accurately for the instantaneous immerse hull

    本文的研究分為二個部分：首先利用frank源匯法計算水動力系數，計算包括不同吃水時的附加質量和阻尼系數，吃水范圍涵蓋了船舶大幅度運動時所有可能的吃水；然後建立和求解船舶大幅度運動方程，在實際計算時一方面考慮了運動模態之間的耦合，另一方面在計算水動力時，考慮了非線性因素的影響。 froude - krylov力、輻射力、繞射力中的水動力系數隨吃水瞬時變化，靜浮力的計算精確到船體瞬時濕表面積，最後用四階龍格?庫塔方法在時域內求解船舶運動方程，並進行了載荷計算。
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