正向星系 的英文怎麼說

中文拼音 [zhēngxiàngxīngxì]
正向星系 英文
face-on galaxy
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 星 : 名詞1 （夜晚天空中閃爍發光的天體） star 2 [天文學] （宇宙間能發射光或反射光的天體） heavenly body...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 正向 : [電學] forward direction正向傳導 forward conduction
  • 星系 : [天文學] galaxy; galact-
  1. For the regular curves, we find two killing fields for the purpose of integrating the structural equations of the p - elastic curves and express the p - elastica by quadratures in a system of cylindrical coordinates. for the star - like affine curves, we solve the euler - lagrange equation by quadratures and reduced the higher order structure equation to a first order linear system by using killing field and the classification of linear lie algebra sl ( 2, r ), sl ( 3, r ) and sl ( 4, r ). we solve the centroaffine p - elastica completely by quadratures

    對于正則曲線的情形，我們發現了兩個用於求解p -彈性曲線的結構方程的killing向量場並用積分將p -彈性曲線在一個柱面坐標系中表示出來，而對仿射星形曲線的情形，我們用積分方法解出了歐拉-拉格朗日方程，利用killing向量場及線性李代數s1 （ 2 ， r ） 、 s1 （ 3 ， r ）和s1 （ 4 ， r ）的分類將高階結構方程降為一階線性方程，因此我們用積分完全解出了中心仿射p -彈性曲線。
  2. Face - on galaxy

    正向星系
  3. Face - on spiral

    正向旋渦星系
  4. In this epic disaster film of faith, a mother and father search for their only child as a giant asteroid headed for earth triggers a series of apocalyptic events

    在這部以信仰為主題的敘事詩災難片里，巨大的小行星正沖向地球，因而引發一系列的災難性事件，一對父母四處尋找他們的獨生孩子。
  5. It is necessary in digital communication system that carrier recovery can compensate frequency offset and phase jitter brought by transmission and modulation. this paper is mainly focused on carrier recovery technique. we introduce the channel model at cable headed and receiving site. firstly, we introduce the principle of carrier recovery and give some algorithms of them, which are directed - decision, reduced constellation and frequency sweeping

    本論文緊緊圍繞著數字通信系統中的載波恢復技術，在介紹了有線通信系統所用的調制解調通道模型后，首先闡述了載波恢復技術的思想和基本原理，在此基礎上給出了三種載波恢復演算法，即判決導向演算法、簡化星座判決演算法和掃頻演算法，並且給出了其各自的模擬圖：然後深入研究了一種適合高階qam並且能糾正較大頻偏的載波恢復技術：極性判決演算法。
  6. " you see a picture of a galaxy, " he says, " and you know that stars are speeding through it, gases are flowing in, and jets of plasma are shooting out. i wanted to see these things move

    他說：當我看到星系的照片，知道星體正穿梭其中，氣體緩緩流向星系內部，熾熱的等離子體則不斷激射而出，我便想親眼看看這些天體的運動。
  7. It was not until 1929 did astronomer edwin p. hubble discovered the red shift of distant galaxies and thereby proved that the universe is expanding in all directions. when einstein heard and fully appreciated these observations, he declared that the inclusion of the cosmological constant was his " biggest blunder "

    直至一九二九年，天文學家哈勃通過觀測遙遠星系的紅移情況，證明宇宙正向四方八面不斷地膨脹，這時愛因斯坦才猛然自醒，甚至認為當初所提出的恆穩宇宙的結論是他一生中所犯下最愚笨的錯誤。
  8. The mode of industrial clusters is about how to arrange the enterprises and the relationships between enterprises, in this paper we study the forward transition from marshallian cluster to satellite cluster and hub - and - spoke cluster, as well as the adversive transition on the basis of the cluster evolution research home and abroad, then tell the utility of both transitions according to the developmental reality of industrial clusters in china

    在借鑒中外集群模式演化研究成果的基礎上，著重探討了馬歇爾集群、衛星式集群及輪軸式集群之間的正向和逆向轉化關系，結合我國產業集群發展現狀，闡述了這兩種轉化的實際意義。
  9. To solve this inconsistency effectively, we don ’ t confine to one single fusion method or wavelet coefficients fusion rule, but combine them together and improve them. we consider several eigenvectors of the input images synthetically, and use the discrete biorthogonal wavelet transform at the lowest decomposition level to fulfill the new cwt - ihs multisensor remote sensing image fusion algorithm based on color compensation rule

    為了有效地解決這一矛盾，本文不局限於單一的圖像融合方法和小波系數融合規則，而是將各種方法和規則結合起來並加以改進，綜合考慮輸入圖像的多個特徵向量，用最低層的離散雙正交小波變換實現了一種新的基於顏色補償的cwt - ihs多源衛星遙感圖像融合演算法。
  10. The satss is an antenna pointing servo system with ultra - low speed and high accuracy, driven by a rare earth permanent magnet ( repm ) brushless dc torque motor. to reduce torque ripple, the repm brushless dc torque motor has a slotless armature, and uses sinusoidal wave driven technology

    衛星天線跟蹤伺服系統為超低速高精度天線指向控制系統，該系統使用稀土永磁式無刷直流力矩電機作為天線的驅動機構，為降低轉矩脈動，電機採用無槽電樞結構設計，並使用正弦波驅動方式。
  11. In the management of city transportation, navigation of satellite cannot meet the practical requirement because of shielding and interfering of satellite signal. therefore, map matching and dead - reckoning ( dr ) is used to assistant navigation. this combination is defined as gps / dr integrated navigation system, in which the map matching is used for correcting the orientation and distance errors of dr

    而在城市交通管理的應用中，由於衛星定位信號經常會受到建築物的遮擋和干擾，衛星定位無法滿足導航的實際要求，通常需用地圖匹配和航位推算器（ dead - reckoning ， dr ）的方法進行輔助導航，這種導航方式稱為組合導航系統，其中地圖匹配可用來修正dr的方向和距離的系統誤差，以便在衛星信號失鎖時，提高dr自主定位的精度。
  12. In the beginning of the 20th century, american astronomer edwin hubble discovered that nearly all galaxies are moving away from us with velocities proportional to their distances from the earth, inferring that the universe is expanding

    在二十世紀初，美國天文學家哈勃h ubble提出宇宙膨脹理論，並觀測到我們四周的星系正以不同速度向外飛逝，距離愈遠的，飛逝的速度也就愈高。
  13. Nowadays, at any time and any place, numerous artificial satellites are bustling above our heads beyond the tranquil sky. unmanned spacecrafts bearing the most sophisticated equipment and cameras are sent to study other members of the solar system

    現今各類人造衛星無時無刻都在我們頭上的天空穿梭配備先進儀器和攝影機的行星探測船也正向太陽系中的成員進行極細致的偵查。
  14. The department of community and family medicine of cuhk and the haven of hope christian service jointly organized a press conference on 25 september 1998 where professor s. h. lee, chairman, department of community & family medicine, dr c c lam, medical director, haven of hope christian service, and professor john ashton explained to the public the " healthy city " concept, and the details of the collaboration, and how the idea could be put into practice in the case of tseung kwan o. the press conference was followed by a luncheon talk by professor john ashton on " healthy cities movement "

    為向公眾解釋健康城?的概念，中大社區及家庭醫學系與基督教靈實協會於九月二十五日（星期五）在九龍香格里拉酒店舉行午餐講座兼記者招待會。記者會上，中大社區及家庭醫學繫系主任李紹鴻教授、基督教靈實協會醫務總監林正財醫生及魏司頓教授簡布了兩個機構合作的詳情，魏司頓教授並講解如何將健康城?運動引入本港。
  15. M s. if the motions of the galaxies were random, then we would expect that about half of them will recede from us while half of them will be approaching us. however, hubble found that not only most of them are receding from us, but also the receding velocity is directly proportional to the distance away from us

    假若星系運動的方向是隨機的，那麼應該有一半的星系正在遠離我們，另一半則接近我們，但結果實在出人意表，哈勃發現不單絕大部分星系正在遠離我們，而且它們的退行速度和與地球的距離成正比，這個關系可以下式表示：
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