球面對稱 的英文怎麼說
中文拼音 [qiúmiànduìchèn]
球面對稱
英文
spherical symmetry- 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...
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 對 : Ⅰ動詞1 (回答) answer; reply 2 (對待; 對付) treat; cope with; counter 3 (朝; 向; 面對) be tr...
- 稱 : 稱動詞(適合; 相當) fit; match; suit
- 球面 : spherical surface; sphere球面艙壁 spherical bulkhead; 球面車床 spherical turning lathe; 球面反射...
-
In this paper, we give a brief introduction to the helfrich elastic theory. to solve the helfrich equation under the physical conditions of vesicles, a taylor series method is introduced, which offers a unified method to reproduce the exact solution including the famous axisymmetrical constant - curvature surfaces and the biconcave shape solution
本文在簡要介紹了helfrich的彈性理論及膜方程的基礎上,開創性地引入taylor級數法,在軸對稱膜的邊界條件下,對helfrich膜方程以taylor級數法求解,統一地得到了目前已知的兩個特解:常平均曲率曲面和紅血球形狀解。The interrelation between the signs of the birefringence in the planes of symmetry can be deduced from the index ellipsoid.
各對稱面的雙折射符號之間的相互關系,可以從標準橢球體推定。Consisting of the protracting graph of hydrogen - like atom ' s angle distributing, computer simulation of the symmetry of molecular orbital and chemical reaction mechanism, showing the molecular point group and symmetry element, computer simulation of molecular vibration, bravias ' s crystal lattice and their transforming, extracting of plane periodic lattice, extracting of solid periodic lattice, close packing of isometrical pellet and the structure of simple mental substance, close packing of unequal pellet and crystal structure of representative ionic crystal, computer simulation of phase analysis by x - ray diffraction
內容包括類氫原子角度分布圖的繪制,分子軌道對稱性和反應機理的微機模擬,分子點群和對稱元素顯示,分子振動運動的微機模擬,布拉維晶格和晶格轉化,平面點陣抽取,立體點陣抽取,等徑網球的密堆積和金屬單質結構,不等徑圓球密堆積和典型離子晶體結構, x射線多晶衍射的微機模擬十個子模塊。He also obtained similarity solutions for longitudinal and spherically symmetric motions.
他也得出了關于縱向對稱運動和球面對稱運動的類似解。Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows : ( 1 ) reviewed entirely the origin and evolvement of the concept " sustainable development ", stated and commented the study status in queue on " sustainable development " around national and international range, thorough discussed the science connotation about the concept " sustainable development " ; ( 2 ) looked back and commented across - the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings ; ( 3 ) expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory ; ( 4 ) thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the matlab software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the b - j method and morte - carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources ; ( 5 ) synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming mathematical statistics random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality ; ( 6 ) analyzed the inside condition and outside condition to assure the sustainable and optimum exploi tation of groundwater resources, the inside conditions are the follows : correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows : the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water - saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology ; ( 7 ) scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy ; lint out the more directions on groundwater resources
基於以上考慮,論文主要從以下幾方面對地下水資源可持續開發問題進行了比較深入的探討:全面回顧了「可持續發展」概念的由來與演變,對國內外「可持續發展」的研究現狀進行了述評,並對「可持續發展」概念的科學內涵進行了深入探討;對涉及地下水資源的一些最基本的概念和命題進行了全面的回顧和評述,對目前仍然存在的一些錯誤觀點和混亂認識提出了自己的見解;全面闡述了地下水資源變值系統理論的內容和意義,並與傳統的地下水資源計算評價方法進行了對比分析,結合實例具體說明了方法的應用;深入分析了地下水資源預測預報工作的極端重要性和復雜性,對傳統的地下水資源動態預測方法進行了全面的評述,指出了各類預測預報方法的特點及適用條件,對最近二十多年剛發展起來的小波分析技術的主要思想和方法及其應用范圍,以及號稱第五代計算機語言的matlab軟體和附帶的小波分析工具箱進行了介紹,並應用於地下水動態過程線的分析,採用時間序列中的b ? j法,蒙特卡羅方法,與地下水資源變值系統理論相結合,探討了地下水動態資料分析和地下水資源預測預報的新思路;綜合分析了現今各類地下水管理模型的特點及缺陷,將數學規劃、數理統計、隨機過程等與地下水變值系統理論相結合進行地表水地下水或多水源的聯合優化調度,使模型更準確、更實用;對保證地下水資源可持續開發的內部條件和外部條件進行了分析,內部河海人學博卜學位論文前言、摘要、目錄條件主要是正確的資源觀,科學的資源計算與評價方法,可靠的資源預測預報技術,可操作的資源管理措施,外部條件主要是高層發展思路、管理體制的變革、配套的政策法規、經濟杠桿的調節、人文素質的提高、節水意識的增強及具體節水措施、人口增長的控制、水體污染的防治、生態的恢復和重建等;從宇宙科學、地球系統科學及哲學的高度審視地下水資源的可持續開發;指出了地下水資源可持續開發的進一步研究方向。Secondly, the formula of the shock front of the spherical wave in the air is extended to the model of circumrotated ellipse and the process of the shock front of in the water in term of the transmitting characteristic of the laser plasma shock wave in the air
其次,從空氣中激光等離子體沖擊波波前的傳輸特性出發,將空氣中點源爆炸球面沖擊波波前衰減傳播公式推廣到非中心完全對稱情況,提出旋轉橢球面沖擊波前傳播公式;建立水中的激光等離子體沖擊波波前衰減傳播模型。In addition, it was the sign of the initial amplitude growth rate, not the manner of the interface motion that determined whether the amplitude could increase. at weakly nonlinear stage, mode - coupling equations were derived in cylindrical and spherical geometries. it showed that the nonlinear terms were inversely proportional to the position of the interface in cylindrical and spherical geometries
在弱非線性階段,推導了柱和球幾何中模耦合方程,結果表明:非線性作用項反比于界面的位置,界面的位置越小,非線性作用越強,反之越弱;同時柱幾何中模耦合方程的解表明,在收縮幾何中,擾動在界面兩側的發展是不對稱的,在弱非線性階段,不穩定性向內發展的部分受到慣性力的擠壓,而向外發展的部分受到慣性力的拉伸。Hence a full subshell has zero angular momentum and is spherically symmetric.
於是,一個已經填滿的支殼層的角動量為零,並且是球面對稱的。Implants for osteosynthesis - bone plates - specification for holes corresponding to screws with asymmetrical thread and spherical undersurfaces
骨接合術用外科植入物.第23部分:金屬接骨板.第3節:不對稱螺紋球形底面螺釘的螺釘孔Implants for osteosynthesis - bone screws and auxiliary equipment - specification for the mechanical requirements and test methods for screws having asymmetrical thread and spherical undersurface
骨接合術用外科植入物.第5部分:不對稱螺紋和球形下表面金屬接骨螺釘.第6節:機械要求和試驗方法規范A preliminary analysis shows that the east - west asymmetry in the heliospheric equatorial plane is mainly attributed to the spiral structure of the interplanetary magnetic field
初步分析表明,行星際磁場的螺旋結構是產生日球赤道面內雙重激波對結構東西不對稱性的主要原因。Synchronized motion of the the fast tool servo, workpiece and the diamond tool produces ultra - precision axisymmetric aspheric mirrors
快速伺服機構、工件以及金剛石刀具的同時運動,可以實現軸對稱非球面的超精密加工。The recent researches on observations of h line profile asymmetry in chromospheric flare are reviewed. spectral properties, the corresponding mechanisms of asymmetry, and reproduction of observational spectrum by using semi - empirical atmosphere model are dicussed in detail. at last, the main problems to be solved and further researches are put forward
綜述了近年來太陽色球耀斑爆發時h譜線不對稱性的研究進展,著重討論了光譜特徵和與其對應的不對稱性產生機制,以及利用大氣半經驗模型再生觀測譜線輪廓不對稱性等方面,並提出尚待解決的主要問題和進一步的研究方向。A new form generation method for ultra - precision axisymmetric aspheric mirrors is introduced
摘要介紹了軸對稱光學非球面鏡超精密加工的新方法。Explicit iterated integral formulae of the moments in various order of the hitting times of geodesic spheres by brownian motions on rotationally symmetric manifolds are given in this paper
摘要主要給出了旋轉對稱流形上布朗運動關于測地球面的首中時、球殼的首出時的各階矩的迭代積分公式。Medico - surgical equipment. orthopaedic instruments. drills, taps and countersink cutters for use with osteosynthese screws with asymmetrical thread and spherical under - surfaces. material and dimensions
外科醫療器械.矯形外科器械.帶不對稱螺紋和球形下表面的骨縫術螺釘用鉆絲錐和沉頭鉆Implants for osteosynthesis - bone screws and auxiliary equipment - specification for the dimensions of screws having hexagonal drive connection, spherical under - surfaces and asymmetrical thread
骨接合術用外科植入物.第5部分:不對稱螺紋六角頭球面頸金屬接骨螺釘.第3節:尺寸規范And, at several spots on the planet, the ediacaran lagerst ? tten, named after the ediacara hills of australia where the first example was found, harbor strange precambrian soft - bodied fossils and animal burrows, including evidence for early bilaterians
而分佈在地球上數個地區的艾迪卡拉特異埋藏點(命名自首次發現的澳洲艾迪卡拉山) ,裏面藏有奇妙的前寒武紀軟體化石與蟲穴,包括早期兩側對稱動物的證據。The usga only requires that the golfball ' s dimple pattern be spherically symmetric
美國高爾夫球協會只要求高爾夫球酒窩式樣必須是球面對稱的。Because the forces that are supposed to drive off mass from dying stars are spherically symmetrical, astronomers before the 1980s thought of planetary nebulae as expanding spherical bubbles [ see “ planetary nebulae, ” by martha and william liller ; scientific american, april 1963 ]
由於原本認為,從垂死恆星表面將質量載運出來的作用力具有球狀對稱性, 1980年代以前的天文學家,把行星狀星雲想像成膨脹的球形泡泡(請參見延伸閱讀1 ) 。分享友人