radial region 中文意思是什麼

radial region 解釋
輻射區
  • radial : adj 1 光線的；光線狀的。2 放射的，輻射（狀）的。3 鐳的。4 【數學】半徑的；【物理學】徑向的；【解...
  • region : n. 1. 地方，地域，地帶；地區；行政區，管轄區，區；左近，鄰近；（大氣、海水等的）層，界，境。2. 【解剖學；動物學】（身體的）局部，部位。3. （學問等的）范圍，領域。4. 〈罕用語〉天空。
  1. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。
  2. In theoretical analysis, the motion of radially - emitted electron beam in diode region and drift region has been analyzed, and the relation between radial momentum or current of electron beam and the guiding magnetic field has also been studied, then the possibility to optimize the guiding magnetic field has been derived. the motion of radially - emitted beam electrons in smooth bore magnetron and smooth bore milo has also been studied theoretically. at last, the motion of radially - emitted beam electrons in compound axial and azimuthal magnetic field has been studied

    在理論分析中，初步分析了軸向發射條件下電子在二極體區域和漂移區的運動規律，電子徑向動量隨著外加磁場變化的規律，以及電子束電流隨著外加磁場的變化規律，還有二極體區域磁場優化的可能性;分別研究了有軸向磁場時以及有角向磁場時徑向發射的電子在光滑陽極結構中的運動規律，最後分析了在軸向和角向復合磁場中電子的運動規律。
  3. Delineation of coastal region of south china - with matlab to create radial basis probabilistic neural network

    華南沿海潛在震源區劃分運用matlab徑向基概率神經網路工具箱求解
  4. The first - stage construction of dayaowan has formed a region about 1 km2 by dredging. in this area, because the dredging points were set scarcely, soil formed becomes a regional and radial distribution, in which the soft deposits occupies about 40 %

    大窯灣一期工程利用疏浚吹填形成了約1km的區域，在此區域中，由於設置的吹填點較少，形成的土質呈區域性放射形分佈，軟基佔40左右。
  5. A new high power microwave source, the axial acceletron is presented in this paper. compared with the radial accelectron, an acceleration region is added after the diode / oscillator and radial acceleration is change to axial acceleration. the bunching and radiation of the electron beam in the device are investigated

    最後，我們提出了一種新的高功率微波器件? ?軸向加速管，與徑向加速管比較，有兩個不同：在二極體/共振腔后加一個加速段，並將徑向加速改為軸向加速。
  6. The solids holdup is lower in the center than in the wall region at the radial positions, and the solids holdup is higher in the lower section than in the upper section of the riser

    在徑向分佈上，顆粒濃度呈現中心稀，邊壁濃的狀態。在軸向上，顆粒濃度呈現上稀下濃的分佈。
  7. It is also found that the flow developments in all radial locations are not synchronized, but it extended gradually from the core region to the wall, until finally a fully developed flow is achieved across the whole cross - section of the riser. the flow development at the annulus region near the wall, as a control process of the whole flow development in the riser, is much slower, and more sensitive to the change of operation conditions than that at the core region

    氣固兩相流動沿徑向的發展並不同步，而是一個由核心區向邊壁區逐漸擴展，最終達到充分發展的過程，該過程主要受邊壁區發展過程式控制制；相對于核心區，邊壁區的發展不僅顯著緩慢，而且受操作條件的影響也較顯著。
  8. In this paper a newly develoed helical coordinates is used to make out the solution of electromagnetic fields in the helix gap and calculate dispersion characteristics of tape helix slow wave structure for the first time. strict boundary conditions for magnetic fields are adopted and are treated rigorously by fourier expansion. besides, the radial propagation constant of every layer in the dielectric - loaded region is differentiated. some of practical tape helix slow wave structures have been calculated for dispersion characteristics and the calculated values accord with measured values very well. the authors also compare the calculated results with experiments for different structures by changing tape thickness or other structure parameters and find that the theory in the paper is universal

    本文首次運用螺旋坐標系給出了帶狀螺旋線縫隙內的電磁場解，並據此計算了帶狀螺旋慢波結構的色散特性.文中採用了嚴格的邊界條件，並以傅立葉展開進行了嚴格的數學處理.另外還首次對有介質區域內各層的徑向傳輸系數作了區別.本文使用這種方法計算了我們已研製的一些寬帶高功率行波管所用的慢波線結構的色散特性，理論與實驗符合得很好.我們還計算了不同結構參數對色散特性的影響，並與實驗作了對照，發現本文的理論有一定的普適性
  9. Die throat radial stress was analyzed during every phase of drawing when the round draw bead be used, the formula of even stress intension in every region are deduced, this work establish the theory base of software programming about drawing the curved surface part

    摘要以半圓筋為例，分析得到了使用拉深筋拉深曲面零件時，拉深各階段凹模入口的徑向應力公式，並且對拉深各位置段的平均應力強度進行了求解，為開發曲面零件拉深應用軟體奠定了理論基礎。
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