拋射線 的英文怎麼說

中文拼音 [pāoshèxiàn]
拋射線 英文
trajectory
  • 拋 : 動詞1. （扔; 投擲） throw; toss; fling 2. （丟下; 拋棄） leave behind; cast aside; abandon
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  1. A parabolic concave mirror can converge parallel light rays to its focus, and also collimate light rays that pass through its focus

    拋物面凹鏡會把平行而來的光線聚集在一點焦點，亦會把源自焦點的光線平行向外反射。
  2. This and the x - ray spectrum, which exhibits a high concentration of iron atoms relative to oxygen and silicon, convincingly show that the ejecta are the remains of an exploded white dwarf star

    這幅圖連帶x射線光譜（顯示出了鐵相對氧與硅的高度集中）令人信服地說明，拋出的物質是爆發白矮星的殘余。
  3. The technical specification of radiation pattern envelope for paraboloid antenna used in microwave relay communication systems

    微波接力通信系統拋物面天線輻射圖包絡的技術要求
  4. Test method for sub - surface damege of gallium arsenide polished wafer by x - ray double crystal diffraction

    砷化鎵拋光片亞損傷層的x射線雙晶衍射試驗方法
  5. While carrying out the scheme, at first, the basic theory of antenna, array antenna and electromagnetic absorption, the performance parameter of antenna and parabolic antenna are deeply researched. in conformity, the characteristic and calculation of aperture field and near - to - far - field transformation for radiation pattern are detailed analyzed. second, the factors such as, the amount of the antenna elements, mutual coupling between each element, ground and the buildings on earth ' s surface, which affect the performance of array antennas ’ resultant field are stressed discussed

    在系統實現過程中，課題首先從天線、陣列天線，以及電磁場計算方法的基本理論著手，分析了天線與拋物面天線的各項性能參數，以及天線的口面場和近-遠區輻射場的特點和計算;進而，更加深入的討論和研究影響天線陣列合成場強的各項因素，包括系統所使用的天線單元個數對陣列合成場的影響、天線單元之間由於互耦造成的影響、傳播過程中地面和/或地面建築物的影響等。
  6. Abstract : in the field of optical wireless links, concentrators that are designed by the tools of nonimaging optics can be used to collect the light radiation and are more compact and have higher collection efficiencies than imaging concentrators. hemispherical concentrators are studied by ray tracing, then for several normal nonimaging concentrators : hemispherical concentrators, compound parabolic concentrators ( cpc ), dielectric totally internally reflecting concentrators ( dtirc ), simultaneous multiple surfaces concentrators ( sms ) and inhomogeneous media concentrators ( poisson bracket ), the design methods and the performances e. g. the gain and the field of view ( fov ) are compared as well as the application suggestion

    文摘:在無線光通信領域，利用非成像光學設計的集中器能夠聚集光輻射能量，而且相對于成像性集中器具有更緊湊的結構和更高的增益.利用光線追跡法對半球形集中器的性質進行了分析與研究.對好幾種非成像集中器:半球形集中器，復合拋物線形集中器，介質內部全反射集中器，多表面集中器，多相介質集中器，從設計原理、增益和視場進行比較，並分析其應用場合
  7. The design of amorphous photonic material and photonic crystal devicements we design to make a reflecting mirror of cylinder paraboloid of an antenna by using amorphous photonic materials. we calculated the transmission of the mirror and the distribution of electric field by using multiple scattering method. the result shows that it can be used as a reflecting mirror of an antenna

    非晶光子材料和光子晶體器件的設計提出了用介質圓柱光子晶體作微波天線的柱拋物面反射鏡，用多重散射方法計算了反射鏡的透過譜，並模擬計算了天線的電場分佈，初步認為可以用非晶光子材料作微波天線的反射鏡。
  8. Because of this, the design about a new kind of reflectors called reflectarray was initiated

    為了改進拋物面天線的這些缺陷，國外的學者提出了陣列反射天線的概念。
  9. In order to solve the problem of deviation of suitable angle andthe practice of shot put, the author analyzes the function relation between performance and the maximum projectile range, draws the best result theorem that is new optimum angle formula and sign - line parameter

    為了解決鉛球適宜投出角度公式與實踐偏離的問題，分析了鉛球成績與拋體最大射程的函數關系，得出了最大成績定理、 「新」最佳投出角度公式和最佳出手角度標志線參數式。
  10. The daily albedo variation, which is big in the morning and afternoon and smallest at midday, emerge parabola above spring wheat and bare soil surface

    春小麥和裸地兩種不同下墊面的地表反射率日變化均呈現出拋物線特徵，早晚反射率較大，正午反射率最小。
  11. On the contrary, his eyes wet with tears, pierre looked joyously at this bright comet, which seemed as though after flying with inconceivable swiftness through infinite space in a parabola, it had suddenly, like an arrow piercing the earth, stuck fast at one chosen spot in the black sky, and stayed there, vigorously tossing up its tail, shining and playing with its white light among the countless other twinkling stars

    與之相反，皮埃爾興高采烈地睜開他那雙被淚水沾濕的眼睛，凝視著這顆明亮的彗星，它彷彿正以非言語所能形容的速度沿著一條拋物線飛過這遼闊的空間，忽然它像一枝射進土中的利箭，在黑暗的天空楔入它所選定的地方，停止不動，它使盡全力地翹起尾巴，在無數閃爍的星星之間炫耀自己的白光。
  12. First, the ray tracing equation and its numeric solution is presented in this paper, then on the base of quasi - parabolic ionosphere model, using the technology of the numeric ray tracing, a ray tracing simulateing platform is established. this platform can simulate the ray tracing for a fixed frequency or sweeping frequencies, also can calculate the group path and the covered region of rays

    首先，本文給出了射線追蹤方程及其數值解法，在球形對稱準拋物模型背景電離層基礎上，利用數字射線追蹤方法，建立了射線軌跡演示平臺。該平臺可實現定頻或掃頻射線軌跡演示，計算各射線群路徑，覆蓋區域等功能。
  13. After the first stage burns out, it falls back to earth along a parabolic path, while the engines of the second stage fire to thrust the rocket into an earth orbit

    當第一級燒毀后，沿拋物線的軌道落到地球，而第二級的發動機點火把火箭發射到地球軌道。
  14. Three shaped profiles ( parabola, linear, and exponential ) have been considered. the exponential dispersion profile fiber loop is optimal for the propagation and compression of picosecond pulse. on the contrary, the parabola dispersion profile fiber loop is optimal for femtosecond pulse due to the high order effects such as the third order dispersion ( tod ), stimulated raman scattering ( srs ) and self steeping ( ss )

    （ 3 ）研究不同色散遞減類型（拋物線遞減、線性遞減、指數遞減）光纖構成的環形腔中傳輸的特性，發現其色散曲線為指數遞減型光纖有利於皮秒光脈沖的傳輸與壓縮；而對于飛秒脈沖，由於三階色散（ tod ） 、脈沖拉曼自散射（ srs ）及自變陡（ ss ）等高階非線性效應的影響，情況恰恰相反；色散曲線為拋物線遞減型的光纖構成的光纖環最有利於脈沖傳輸與壓縮。
  15. The rotated parabolic equation method was presented to compute the bistatic radar cross section ( rcs )

    並提出了旋轉拋物線方程演算法，實現了目標任意角度雷達散射截面的快速計算。
  16. Numerical results are compared with that of the analytical solution, it was shown that the complexity of computation was reduced drastically without sacrificing much accuracy

    數值結果表明：標準拋物線方程演算法在計算目標雷達散射截面時具有較高精度，且計算速度大大提高。
  17. The curve of life is like the parabola of a projectile which, disturbed from its initial state of rest, rises and then returns to a state of repose

    人生的曲線就像是發射器的拋物線，脫離了原先的靜止狀態，往上射出，最後又回歸到靜止的狀態。
  18. The theory of parabolic equation ( pe ) was presented, and was applied to the scattering analysis of two dimensional perfectly electric conducting objects

    摘要對拋物線方程演算法的基本原理進行了詳細論述，並將其運用到二維導體目標的電磁散射特性分析中。
  19. Solar wind flows out from the corona the sun s outer atmosphere into interplanetary space at speed of between 300 and 900 km per second. it causes fluctuation to the earth s magnetic field, which we call magnetic storm. such event will cause deflection of compass needles

    而太陽風則以每秒300至900千米的速度由日冕太陽外大氣層向外拋射，進入行星際空間，對地球磁場造成擾動而產生磁暴，導致指南針指針偏移，嚴重的話更會導致電力受阻和電話線路中斷。
  20. The fluffy crescent - shaped x - ray features that appear around the edge of the remnant are thought to be fragments of high - speed matter shot out from the star when it exploded, like shrapnel from a bomb

    射線下，環繞遺跡邊緣的蓬鬆新月狀結構據信是恆星爆發時高速拋出的物質的殘留，類似於炸彈的彈片。
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