聚束角 的英文怎麼說

中文拼音 [jùshùjiǎo]
聚束角 英文
bunching angle
  • 聚 : 動詞（聚集; 聚積） assemble; gather; get together
  • 束 : Ⅰ動詞1 （捆; 系） bind; tie 2 （控制; 約束）control; restrain Ⅱ量詞（用於捆在一起的東西） bundle;...
  • 角 : 角Ⅰ名詞1 （牛、羊、 鹿等頭上長出的堅硬的東西） horn 2 （古時軍中吹的樂器） bugle; horn 3 （形狀像...
  1. Abstract : the far - field spot characteristics of laser converted by random phase plate are analyzed theoretically, including the shape, size, rotational symmetry and diffractive efficiency of the spots, as well as the distribution of subsidiary spot. by comparing the influence of phase element shape ( triangular, square and hexagonal ) on the characteristics, we found that the random phase plate with hexagonal array structure is more suitable for the beam smoothing in laser fusion

    文摘:從理論上分析了激光經隨機位相板變換后在遠場的光斑特性（包括光斑的形狀、大小、旋轉對稱性、衍射效率以及旁瓣分佈） ，通過比較三種形狀位相元（等邊三角形、正方形和正六邊形）的遠場光斑特性，得知正六邊形位相元結構的隨機位相板更適合於激光聚變中的束勻化。
  2. Beam angles of spotlights

    聚光燈光束角度
  3. Early in the morning of october 15, 1997, standing in the dark on the edge of an alligator - infested inlet near cape canaveral, fla., i watched with thousands of others as a tiny flame appeared beneath a rocket illuminated by floodlights on a launchpad several miles away

    1997年10月15日清晨，天色猶暗，我站在美國弗羅里達州卡那維爾角附近一個鱷魚群居的海口邊緣，和好幾千人一起看著數英裡外的發射臺上，被聚光燈照亮的火箭下射出一束細小的火焰。
  4. The position and size of the monochromator, focusing curvature radii and tilting angles of the germanium focusing monochromator under different different take - off angle, size and divergency of the second collimator and intensity loss due to the use of it were determined. the neutron flux at different wavelength, under different reflection and take - off angle of the monochromator and divergency of the first collimator, were given. the simulation on the aperture used for limiting beam size in front of the sample showed that, smaller the size of the aperture and further the distance from the aperture to the sample, greater the loss of the intensity and more serious the spread of the beam along vertical direction at the sample position which makes the practical sampling volume greater than expected

    用蒙特卡羅模擬方法對中子應力衍射譜儀的設計方案進行了優化研究，提出了一系列可供參考的數據：確定了單色器的位置、尺寸、垂直聚焦單色器在不同起飛角下的聚焦曲率半徑和傾角；討論了第二準直器的尺寸和發散，以及使用第二準直器造成的強度損失；給出了在不同單色器反射面、起飛角、中子波長和第一準直器發散度的情況下樣品處的中子注量率，以及多種組合情況下譜儀的解析度曲線；對限束方孔的尺寸、距離樣品遠近對強度損失和測量中的影響做了深入研究。
  5. In the experiment, we use the he - ne laser and the semiconductor laser as the source, record the bessel beam patterns behind the axicon by using a digital camera and a microscope, measure the radius of the bessel beam central spot by film - scanning and measure the effect of both the radius of the aperture and the open angle of the axicon on the maximum non - diffraction distance. the experiments show that a specific propagating range has constant power and the beam has a bessel - like distribution in this range. the results agree with the beam corresponding to a diffraction free beam

    同時我們還採用膠片掃描的方法測量了無衍射光束的中心光斑尺寸，測量了不同光闌孔徑和不同稜角情況下的最大無衍射距離和傳播軸附近橫截面內微小光孔中的光強，實驗結果顯示當激光光束經過軸棱錐轉換後有一段距離功率變化很小，且分佈近似貝塞爾分佈，符合無衍射光束的特性;經過聚焦后，呈現三維分佈中空的光束bottlebeam ，實驗結果與理論分析基本吻合。
  6. The intervening matter between the source and the observer gravitationally deflects and focuses the light bundle, increasing the apparent angular size of the source.

    光源與觀測者之間的物質對光束產生引力偏折和聚焦作用，使光源的視角徑加大。
  7. The basic model about a novel plane yoke and focusing performances when electron beam is making a large angle deflection are discussed

    摘要討論了新穎的平面形偏轉線圈的基本結構模式及其在電子束大角度偏轉時所具有的聚焦特性。
  8. The results showed that the excitons were completely recombined after 900 fsec and the geometry structure of the polymer such as the bow and the ring - torsion angles returned to the ground states, which were the dimerization states

    結果表明，大約在900fsec之後激子復合過程結束，電子結構返回到二聚化狀態，體系的鍵序波、芳環扭角等回到基態的二聚化狀態。
  9. The results show that radius and position of focal beam waist, focal angle and focal depth describe focal beam properties. they are determined by waist and rayleigh length of beam before focusing, the position and focal length of focus mirror

    聚焦光束束腰位置和半徑、聚焦角、焦深、焦點偏移量以及焦點漂移量是描述光束聚焦特性的主要參數，它們由四個參量共同決定，分別為聚焦前光束的束腰半徑、瑞利長度和聚焦鏡的焦距以及聚焦鏡到光束束腰位置的距離。
  10. Chapter 2 : using a so - called variance matrix, we studied the propagation and the focusing characteristics of the paraxial light beams. the quantities characterizing the gross features for a paraxial optical beam, such as the beam width, the divergence, the curvature radius of the wavefront, the complex beam parameter q. and the beam quality factor, are related by using variance matrix

    第二章：闡述了常數折射率介質中光束的傳輸和聚焦，建立了表徵傍軸光束總的特徵的量，如：束寬、衍射發散角、波前曲率半徑、復光束參數q與變換矩陣的關系，得到了光束質量因子和變換矩陣行列式的定量關系。
  11. After studying various constraints, a constraint - based cluster using function partition based on angle dissimilarity, a partition sowntown means with least outspread tree method, and the quantity of customer ' s sale was forecasted by time - series analysis were presented. so, a series of cspr ( cluster sown town partition rule ) to manage lcc database was describe

    為實現對滿足約束條件的聚類尋找適當的方法，作者在分析聚類約束條件的基礎上，提出運用基於角度相異度的函數劃分法處理地理位置的約束條件，用最小生成樹聚類分析方法生成滿足多項約束條件的聚類，用時間序列預測技術使客戶銷量約束條件趨于完善。
  12. After the focal plane, the focused hollow beam propagated according to a constant angle of divergence, the dss become larger, and the intensity become weaker

    經過焦點后，這一聚焦中空光束將以一定的角度發散，它的dss會變得越來越大，光強度變得越來越弱。
  13. It works by delivering beams of gamma rays into the human body from various directions and focusing them on the target tissue

    它將許多束很細的伽瑪射線從不同的角度和方向照射進人體，並使它們都在一點上匯聚起來形成焦點。
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