球面度 的英文怎麼說
中文拼音 [qiúmiàndù]
球面度
英文
sphericity-
The optical manufacturing for off - axis aspheric mirrors has become increasingly challenging for two reasons. the mirrors, in addition to being larger, are more aspheric and off - axis in order to meet the requirement of next generation space camera, which is commonly configured as three - mirror - anastigmat ( tma ) to get both wide fov and high resolution, and the required accuracy is more stringent
近年來，人們提出了「離軸三反消像散」 （ tma ）結構來滿足下一代空間相機「詳查」和「寬覆蓋」的技術要求，該結構中要求使用三塊離軸非球面反射鏡，而大口徑、高精度離軸非球面反射鏡的製造技術是研製tma結構空間相機的主要技術瓶頸之一。Until about 1450 spherical trigonometry consisted of loose rules based on greek, hindu and arabic versions.
差不多直到1450年球面三角的內容由一些不嚴謹的法則組成，這此法則的基礎是希臘、印度和阿拉伯譯本。As it can be expressed easily by argument equations, we use the conicoid as the criteria of points " classification. based on the point ' s normal and the adjacent field, corresponding to the conicoid equation such as plane, ball and cylinder, we search the points that fit the equation along the adjacent field. using this method, we realized the automatic classification of unorganized points
本文採用了可以比較方便地用參數方程表示的二次曲面作為數據點的分類標準，根據點的法向量以及其鄰域結點的各種屬性，對應于平面、球面、柱面等二次曲面，依據曲面方程的特點，從起始點開始沿鄰域深度優先遞歸尋找符合方程的數據點，實現了散亂數據點的自動分類。In the displacement measurement based on the principle of laser interference, the gaussian quadrics fitting algorithm is used to fix the central position of facula and raise the location accuracy
在基於兩球面波干涉的長度和距離測量實驗中，運用高斯二次曲面擬合演算法為激光光斑的中心坐標定位，提高了光斑的定位精度。Mean lower hemispherical intensity
平均下半球面燭光度Mean hemispherical intensity
平均半球面發光強度Concave reflecting surfaces of spherical cap, paraboloid and hyperboloid of revolution are investigated with regard to the dependence of the levitation force on the section radius rb and curvature radius r ( or depth d ) of the reflector
針對球面、旋轉拋物面和旋轉雙曲面三種形狀的凹面反射端，系統研究了懸浮力與反射端截面半徑r _ b和曲率半徑r （或深度d ）之間的本徵關系。In order to increase pointing precision, the error caused by inductosyn and ad2s80a are analyzed as a focus, consequently, high precision inductosyn is used, then current iscompensated and finally the input and output differences are adjusted when
根據衛星軌道姿態，運用球面三角形找出衛星及星下點與目標點之間的關系，建立了指向反射鏡與目標點的角度關系。All planes perpendicular to the solar axis intersect the solar sphere along circles of latitude.
所有垂直於太陽軸的平面和太陽球面相交成緯度圈。Design and construction of large - span latticed shells of pinghu gymnasium
平湖體育館大跨度球面網殼的設計與施工Production and processing equipment : bearing production equipment, the ball processing equipment, bearing cleaning equipment, packaging equipment bearings, needle roller processing equipment, light jewelry processing equipment, spherical roller processing equipment, rough processing equipment, double - end grinders, spindle, wheel oilstone and other grinding materials, heat production, high - precision coordinates grinder, and outside grinder, seal marking machine, profilometry, contour dynamic analysis, hardness needle - sorting machine, a round instrument, processing tester, processing meter, dynamic vibration and noise analysis, vibration, noise testing device raceway ultra - precision instrument, roughness measuring instrument, the finish detector, sorting machine, converters and bearing products preservatives, lubricants, cleaning agents, such as processing raw materials
生產及加工設備：軸承生產設備球加工設備軸承清洗設備軸承包裝設備滾針加工設備光飾加工設備球面滾子加工設備毛坯加工設備雙端面磨床電主軸砂輪油石和其他研磨材料熱處理生產高精度坐標磨床內外圓磨床印子打標機輪廓測量儀輪廓動態分析儀硬度針分選機圓度儀加工測試儀加工測量儀振動噪聲動態分析儀震動噪聲測試裝置滾道超精儀粗糙度測量儀光潔度檢測儀分選機變頻器及軸承產品防腐劑潤滑劑清洗劑加工原材料等。2, the bearings production and processing equipment signal processing equipment, bearing cleaning equipment, packaging equipment bearings, the bearings production equipment, round instrument, blank processing equipment, double - end grinders, electric spindle and wheel grinding oilstone and other materials, printers marking machine measuring instrument, spherical roller processing equipment, raceway - seiki, roughness measuring instrument, the finish detector converter, hardness needle - sorting machine and new materials, lubricants, preservatives, cleaning agents, testing instruments
2軸承生產加工設備球加工設備軸承清洗設備軸承包裝設備軸承生產設備圓度儀毛坯加工設備雙端面磨床電主軸砂輪油石及其他研磨材料印字打標機加工測量儀球面滾子加工設備滾道超精機粗糙度測量儀光潔度檢測儀變頻器硬度針分選機及新型材料潤滑劑防腐劑清潔劑測試儀器等。The pillow block ball bearing is composed of a single row deep groove ball bearings with seals at both sides and spherical outside surface, and a housing, suitable for simple support, widely used in varieties of mechanical equipment, especially for agricultural, metallurgical, textile and printing machinery
外球面帶座軸承由一個兩面帶密封圈的單列外球面深溝球軸承和一個軸承座組成，適用於簡單支撐，對主機的製造和安裝精度要求低，安裝拆卸方便，廣泛應用於各種機械設備，尤其使用於農業機械、冶金機械、紡織機械及印刷、印染、食品、建材、陶瓷等各種輸送設備。The pillow block ball bearing is composed of a single row deep groove ball bearing with seals at both sides and spherical outdide surface, and a housing, suitalie for simpie support, widely usedinvarieties of mechanical epuipment, especially for agricultural, metallurgical, teatile and prnting machinery
外球面帶座軸承由一個兩面帶密封圈的單列外球面深溝球軸承和一個軸承座組成，適用於簡單支承，對主機的製造和安裝精度要求低，安裝拆卸方便，廣泛應用於各種機械設備，尤其適用於農業機械、冶金機械、紡織機械及印刷、印染、食品、建材、陶瓷等各種輸送設備。Aspheric optical compound machine tool ( aocmt ) which integrates grinding, lapping and polishing is developed. the influences of motion errors on grinding accuracy are analyzed. according to homogeneous coordinate transition model, the postposition processing algorithm in multi - axis numerical control machining is deduced
3 、研製了集銑磨成型、研磨、拋光於一體的光學非球面復合加工機床（ aocmt ） ，分析了各種運動誤差對銑磨精度的影響；根據空間齊次坐標的變換模型，推導出多軸數控加工的後置處理演算法；通過五軸數控聯動， aocmt機床能夠以法向方式加工出任意復雜的光學表面，銑磨精度穩定在8 m之內。The binding principle in pelletizing covers a comprehensive model of interfacial reaction among particles inside green pellets, the formation of binding film during hardening of green pellets by baking to obtain enough strength for a volumetric catalyzed reduction model for cold - bound pellets bearing composite binder and corresponding high temperature reduction system in rotary kiln
提出了含復合粘結劑的生球強度界面作用力綜合模型，冷固球團礦強度的粘結膜機理，含復合粘結劑的冷固球團礦催化還原體積反應機制及全窯高溫快速還原熱工制度。Abstract : it is observed that the sommerfeld ' s formula for a progressive spherical wave is not covariant with respectro the rotation of the coordinate system. it contains complex partial waves that are not physical. the standing wave representation of the same formula is shown to be covariant and physical. it is applied to solve the boundary value problem of fiber optics. the radiation modes as well as the guided normal modes are obtained in closed forms. the intensity distribution in various modes is obtained. it is remarked that the mode of critical refraction is missing
文摘:說明了球面行波的索末菲公式在坐標轉動下不協變.證明了球面波的駐波表示是協變的，因而是一個物理的關系式，故適用於圓柱坐標中各類波動方程的定解問題.作為一個例，應用於光纖光學，導出了受導簡正模和輻射模的表達式，以及各模式的強度分佈The course marshal on duty have the responsibility to keep play moving at reasonable speed and they have the complete authority to ask any player to speed up play or the faster groups to pass through
球場巡場員有責任維護球場內打球進度，而巡場員是有絕對權利要求球手加快打球速度或讓後面較快的一組超越前組。This paper mainly aims at the strategic demands for large - aperture lightweight mirror proposed by high - tech development. its main research contents are : select material blank for lightweight mirror according to physical and chemical properties of optical glass ; analyze and calculate the deformation quantity of the mirror with finite element method ; design and optimize mirror body structure of 400 lightweight plane mirror and 450 lightweight spherical mirror, analyze glass cutting principle, design specisl - use grinding wheel structure, select reasonable technological parameters to implement the processing of weight reduction holes on 400 plane mirror ; analyze etching mechanism of hydrofluoric acid, look for the technological parameters such as the optimal acid concentration and etching time etc. ; eliminate the stress of weight reduction holes and micro - cracks on 400 lightweight plane mirror ; discuss the processing principle and
本論文的研究主要是瞄準國家高技術對大口徑輕型鏡的戰略需求而開展的。主要研究內容是：根據光學玻璃的物理與化學性能，選擇輕型鏡坯材料；用有限元法對鏡子的變形進行分析、計算，找出變形規律，優化設計400mm輕型平面鏡、 450mm輕型球面鏡鏡體結構；分析玻璃切削原理，設計專用磨輪結構，選擇合理工藝技術參數，完成400mm平面鏡輕量化減重孔的加工；分析氫氟酸腐蝕光學玻璃機理，尋找最佳酸濃度、腐蝕作用時間等工藝參數，實現400mm平面鏡減重孔應力與微裂紋的消除；討論分離器加工原理和工藝技術特點，完成400mm平面輕型鏡面形加工。It is shown, through the analysis of their surface power and astigmatism, that the shape of the meridian line has significant influence upon the distributions of surface power and astigmatism. their keystone distortion is small. in this way, pal meeting different circumstances can be designed
最後，舉例設計了光焦度增量為2 . 50m ~ （ - 1 ）的幾種漸變鏡片，通過對設計結果分析研究，指出可得到梯形畸變較小的pal鏡片，子午線光焦度漸增多項式參數的選取會影響鏡片球面度和柱面度的大小和分佈，由此，可設計滿足不同使用要求的漸變鏡片。分享友人