非球度系數 的英文怎麼說

中文拼音 [fēiqiúdùxìshǔ]
非球度系數 英文
asphericity coefficient
  • 非 : Ⅰ名詞1 （錯誤） mistake; wrong; errors 2 （指非洲） short for africa 3 （姓氏） a surname Ⅱ動詞1 ...
  • 球 : 名詞1 （以半圓的直徑為軸 使半圓旋轉一周而成的立體; 由中心到表面各點距離都相等的立體） sphere; glo...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. In the thesis, the general situation of the domestic and abroad developments in the field of the numerical control interpolation algorithm for aspheric surface machining is reviewed firstly, for the poorness of recent numerical control interpolation algorithm, an numerical control interpolation algorithm that based on the genetic algorithm ( ga ) and neural network ( nn ) is introduced

    在數控系統中，它是生成加工軌跡的一個最基本的子程序，在很大程度上決定了數控機床的加工精度和最大進給速度。本文首先綜述了國內外非球曲面超精密加工中所運用的插補演算法的發展概況。
  2. The numerical results indicate that the deformation within the solid inner core is very small. however, in the fluid outer core, the changes of the displacement with relatively low spherical harmonic degree ( n < 10 ) is very complicated via the radius, due to the resonance near the eigenfrequenies of the core long - period oscillations. while the spherical harmonic degree of the loading is larger than 10, the deformation and the gravitational perturbation in the core are very small, and the earth ' s deformation response is dominantly represented as the radial displacement in the elastic mantle

    研究了地球在日月引潮力和表面負荷作用下的形變特徵，數值計算結果表明，在固體內核中的形變很小，由於在長周期核模本徵頻率附近的共振，液核中低階（ n 10 ）位移隨半徑的變化非常復雜，當負荷階數超過10時，地核中的形變和擾動位都很小，地球的響應主要表現為彈性地幔中的徑向位移，且隨深度增加急劇減弱，地表負荷love數與信號頻率的依賴關系很弱，給出了體潮love數計算的一種有效的近似處理方案。
  3. An error compensation modal of non - orthogonal coordinate measuring system is built in this paper, in which completely new thought is taken out : using the natural coordinate system combined with the spherical coordinate system to analyze the errors of non - orthogonal coordinates measuring system, in the result, it makes things simpler and not only find out the number of errors and the factors resulted in the errors, but also build the error compensation formula completely, which perfects the study of non - orthogonal coordinate measuring system " s errors

    本文建立了非正交坐標系機械繫統的誤差補償模型，提出了一種新的建模思想：在使用球坐標系的同時，巧妙結合自然坐標系。從而大大簡化了問題的難度，不僅正確地分析出非正交坐標系機械繫統的誤差項數、各誤差項的來源，還成功地建立了誤差補償公式，完善了對于非正交坐標系機械繫統誤差的研究。
  4. The mathematic model of the ultra - thin spherical mirror is to be treated as elastic thin shell. then the predigested model, i. e., bended beam, used in qualitative analysis was proposed, and its deflection and stress formulas under the freely supported condition were set up. based on an off - axis aspherical primary mirror, the relationship of aspherical surface error ( rms ) in tangential plane with bended beam ’ s radius r, position s of concentrated load p and geometry length l of arc was analyzed

    根據這一設想，本文建立了超薄鏡的數學模型?薄殼，並提出了強制力作用下超薄鏡的簡化模型?曲梁，推導了曲梁在簡支情況下受力變形的撓度公式，並結合一個實例，計算出曲梁變形后與所需非球面的面形殘差（ rms ）在子午方向與曲梁弧長l 、曲梁半徑r及集中力位置s的關系及滿足面形精度的r和s范圍，分析了弧矢方向的rms ，得出了同時滿足子午和弧矢方向面形要求的l 、 r和p 。
  5. This subject aims to develop a relative self - contained numerical control system of large - scale aspheric optical parts ultra - precision machining device, in order to realize the low cost and high efficiency of aspheric surface machining and content the needs of accuracy and surface roughness

    本課題旨在設計一種比較完善的大型非球面光學零件超精密加工裝置的數控系統，以實現光學非球面加工的低成本、高效率，並能滿足加工精度和表面質量的要求。
  6. The probability distributions of climatic elements are discussed. based on the characters of them, a multimode model is introduced and verified through the nonlinear fitting. the climate features of quasi - biennial oscillation of the stratospheric zonal wind over equator, the enso index, the surface pressure at reykjavik 21 90w 64 13n and swedish temperature, and the northern hemisphere tree ring all show that the multimode are universal in the climatic system

    對氣候要素的概率分佈進行了討論，根據這些概率分佈的特點提出了多模態模型，並用非線性擬合的方法進行了驗證。對赤道平流層緯向風enso指數esi序列冰島reykjavik 21 . 90w ， 64 . 13n氣壓和瑞典溫度北半球樹木年輪等數據的分析表明：氣候系統中多模態現象具有普遍性。
  7. A study and experiment on severe rainfall with numerical weather forecast in ningxia using geostationary meteorological satellite infrared data in order to improve the ability of torrent rainfall forecast in ningxia, which locates in northwest of china with an arid climate, the relationship between geostationary meteorological satellite infrared data and summer hourly precipitation in ningxia was analyzed, the geostationary meteorological satellite infrared data were applied to retrieve the relative humidity at medium and low layers of atmosphere

    強降水預報是中尺度數值預報的難點之一。為了提高數值預報模式對位於中國西北乾旱地區寧夏的強降水預報能力，本文研究了地球同步氣象衛星紅外資料與寧夏夏季逐時降水的關系。應用地球同步氣象衛星紅外資料，通過優選人工神經網路和最優擬合后的非線性回歸這兩種非線性方法，反演了寧夏自地表到300hpa不同層次的相對濕度。
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