beam center 中文意思是什麼

beam center 解釋
波束中心
  • beam : n 1 梁，棟梁，桁條；（船的）橫梁。2 船幅；（動物、人的）體幅。3 （秤）桿，杠桿，（織機的）卷軸，...
  • center : n vt vi 〈美國〉＝centre n 1 中心；中心點；圓心；中央；中樞，核心；中心人物；根源，起源。2 〈常C ...
  1. It compute the parameter of deflexion caused by thermal distortion in orbit, deduce the general expression for spreading beam after thermal distortion of reflector and the center deflexion of facula received in ccd. with the method of fixing etc, it put forward the restrain measures adopted accordingly

    計算了在軌運行條件下反射鏡面熱變形引起的表面法向偏轉參數，推導了鏡面變形后出射光線的通用表達式以及鏡面變形前後在ccd探測器上的接收光斑中心偏轉量的計算表達式。
  2. 4, single focuse the single head : is single for single laser head that panasonic lead off to adopt to focuse the double the laser beam for focusing ordering the project, he adopting the special whole synthesizing lens, passing lens in the center part ofly the focusing of formation cd the point, and pass the anastigmatic laser beam of part edge the formation the focusing of dvd the point, this kind of construction because of have no the machining to spread to move, and also can t produce the mechanical trouble, therefore increased to recognize the dish the speed, and however and also lowered the cost. but adoption this project of generation is with part of the next generation dvd nonsupports cdr

    4單聚焦單鏡頭：為panasonic率先採用的單激光頭單聚焦鏡雙聚焦點方案，他採用特別的全息綜合透鏡，通過透鏡中間部分的激光束形成cd的聚焦點，通過透鏡邊緣部分的激光束形成dvd的聚焦點，這種結構由於沒有機械傳動，也不會產生機械故障，所以提高了認盤速度，不過同時也降低了成本。但採用此方案的第一代和部分第二代dvd不支持cdr 。
  3. Method of measurement of center beam intensity and beam angle of reflector lamps

    反射燈中心光強和光束角的測量方法
  4. Less roofing beam slope, drain district unitary, suit the various type buil - dings such as shop - ping center, convenient shop and fire station, also but is used in difference in degree across attach across building

    較小的屋面梁坡度，排水區單一，適合於購物中心便利店消防站等多種類型建築物，也可用於高低跨的附跨建築。
  5. Construction technology of hoisting tower and super long cased beam of prestressed concrete in huanglong sport center

    黃龍體育中心吊塔及超長預應力混凝土箱形外環梁施工技術
  6. Supervision and consultation projects completed : ( 1 ) jiangsu xindadou square ( 50, 000m2, two 30 - story buildings ), worked as chief supervision engineer ( consultation ) ; ( 2 ) " yanqiao overpass service center of xicheng highway ( the first overpass type service center on highway in china ), worked as chief supervision engineer ( consultation ) ; ( 3 ) the ninth 5 - year - plan updating technology project of huaiyin tobacco plant, 50, 000m2, worked as chief ( supervision and consultation ) ; ( 4 ) the softy testing, analysis and consultations of nanjing international conference and exhibition center, site - erected structure, 75m span steel roof truss ( the largest one in china ), worked as chief of test and consultation ; ( 5 ) " the consultation service of the testing, analysis and update technology of the reliability of the joints of intermediate floor slabs, beams and columns of base beam of sanshanjie station of nanjing metro " etc

    完成"江蘇新大都廣場（ 5萬多平方米，二幢30層） "建設監理咨詢（總監） ； "錫澄高速堰橋跨線服務區（國內首座） "建設監理咨詢（總負責） ； "淮陰卷煙廠9 . 5技改項目（ 5萬多平方米） "建築監理咨詢（總負責） ；主持了"南京國際會展中心75m跨鋼屋架（國內最大距）現場施工安裝結構安全性測試分析咨詢" ； "南京地鐵三山街站中樓板及底板樑柱節點構造技術安全可靠性的測試分析與技術改進咨詢服務"等項目。
  7. A second problem is thermal noise, especially that caused by the laser beam itself : the laser spots hit the center of the mirrors, heating them unevenly and thereby deforming them

    干涉儀的第二個問題是熱雜訊，其中以來自雷射光本身的熱最是嚴重；雷射光點打在鏡子中心使之溫度上升，加熱不均勻的結果，會導致鏡面變形。
  8. The calculation results indicate that for steel frame in semi - rigid joints cases, the top story deflection, the displacement between two stories, the moment at the center of a beam and the initial end moment at column is larger, nevertheless the end moment at beam and the shear force between two stories

    分析表明：半剛接和剛接相比會使框架結構的柱頂側移、層間位移、跨中彎矩、柱腳某些部位彎矩增大，而梁端彎矩和層間剪力減小。
  9. Firstly, the study of real two - channel data recorded by the airborne battlefield radar is made based on the methods of gmti, which including the study of methods of two - channel equilibrium, that of the precious estimate of beam scanning angle, that of the doppler center, that of the compensation for pattern error and that of gmti and that of location of the moving target using the phase - comparison mono - pulse method

    首先，結合動目標檢測方法，對機載遠程戰場偵察雷達實驗系統錄取的雙通道數據的處理進行了研究。內容包括兩通道均衡方法研究，波束掃描角精確估計方法研究，多普勒中心估計方法研究，方向圖誤差補償方法研究，動目標的檢測和干涉定位方法研究。
  10. The result demonstrates that the variable phase center of fish antenna is much more steady than the lpda in the main beam

    計算結果表明魚骨天線在主波束相當寬的范圍內，其可變相位中心的穩定度要優于對數周期偶極子天線。
  11. Centering at soft x - ray multilayer uniformity technology, we introduce general situation of multilayer, design of multilayer structure, simulation calculation, ion - beam sputtering deposition and evaluation of samples. above all, we carry out study of improving uniformity of period thickness spatial distribution, and develop correction mask for controlling period thickness. as a result, we improve uniformity from 4. 5 % to 2. 0 %, the error of period thickness on ( 130nm field is controlled within 0. 18nm, and the reflectivity reach 35 % at center wavelength 17. 1nm

    特別地，我們設計並應用膜厚擋板補償技術控制多層膜的膜厚分佈，將膜厚分佈非均勻性從4 . 5減小到2 ，周期厚度絕對差值控制在0 . 18nm以內，並且制備得實際多層膜樣品在中心波長17 . 1nm處實測反射率達到35 ，達到實用水平。
  12. The center of ion beam bioengineering in the assip is the first laboratory that dedicated to the study of the microbeam facility

    中科院等離子體所離子束生物工程研究室是國內第一家開展此項研究的單位。現在，本研究室的單粒子束裝置以進入緊張的組裝、調試階段。
  13. The distance from figure center of the parabola to the potential slide surface is less than half of the section length. mechanical conditions of this method include not only force equilibrium but also moment equilibrium. as for the beam - on - foundation, its pressure can be calculated by homogeneous hypothesis or winkler foundation hypothesis or infinite half elastic foundation hypothesis on the pulling anchor - cable step and by coulomb active earth pressure theory approximatively on the long term working step

    對于樁在滑面以上段所受的坡體荷載，提出可按形心偏下的拋物線型分佈模式計算，並在滿足力的平衡條件的同時還滿足力矩平衡條件；對于地樑上作用的坡體荷載，提出在錨索張拉階段可按均布或溫克爾（ winkler ）地基假定或彈性半無限體地基假定來計算，在工作階段則一般可以近似按庫侖主動土壓力理論計算。
  14. Standard test method for flexural strength of concrete using simple beam with center - point loading

    混凝土抗彎強度的標準測試方法
  15. In the aspect of detection and high precision estimation of seafloor backscattering, algorithms of fast convergence of energy center and correlation of eigen - replica were developed. also studded were processing methods of weighted mean time ( wmt ) and bearing direction indicator ( bdi ) based on fft beam forming as well as high precision detection and estimation of time of arrival ( toa ) and direction of arrival ( doa ) using split beams phase difference detection technique

    圍繞海底反向散射信號的高精度檢測和估計技術，開發了快速能量中心收斂演算法和特徵模型相關演算法，研究了基於fft波束形成的加權時間平均與方位指示處理方法，並討論了利用分離波束相位差檢測技術的海底反向散射信號到達時間（ toa ）和到達方向（ doa ）的高精度檢測與估計方法。
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