行星表面學 的英文怎麼說

中文拼音 [hángxīngbiǎomiànxué]
行星表面學 英文
planetography
  • 行 : 行Ⅰ名詞1 （行列） line; row 2 （排行） seniority among brothers and sisters:你行幾? 我行三。where...
  • 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...
  • 表 : Ⅰ名詞1 （外面;外表） outside; surface; external 2 （中表親戚） the relationship between the child...
  • 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...
  • 學 : Ⅰ動詞1 （學習） study; learn 2 （模仿） imitate; mimic Ⅱ名詞1 （學問） learning; knowledge 2 （學...
  • 行星 : [天文學] planet
  • 表面 : surface; superficies; boundary; face; rind; sheet; skin; outside; appearance
  1. The black - and - white photos, taken by three cameras, show deep channels and layered surface debris around the planet ' s midsection, features that probably were formed by water, said alfred mcewen, a mission scientist and university of arizona professor of planetary science. the images were taken from an altitude of 1, 547 miles above the surface, about three times higher than the orbiter will be when it formally begins its science mission in november

    據路透社3月24報道，參與此項任務的亞利桑那大學行星學教授艾爾佛雷德麥克尤恩說，這批黑白照片是由火星偵察軌道器mro上的3臺照相機拍攝的，照片顯示，火星中部地區分佈有深溝和層狀表面的巖屑，這些地貌有可能是水的運動造成的。
  2. Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications

    本文系統地研究了基於「北斗一號」衛星載波相位干涉測量原理實現地球靜止雙星定向的相關技術，主要研究成果包括以下幾方面:首先，建立了利用兩顆地球靜止軌道衛星進行短基線定向的數學模型，分析了載波相位干涉測量的適用條件;採用傳統的線性化解析法及蒙特卡洛隨機模擬法兩種途徑對雙星定向的精度進行了詳細分析，數學模擬結果表明在高緯度地區線性化解析法由於俯仰角誤差分析精度略有下降而不太適合;在分析定向精度確定性影響因素的基礎上，提出了雙星定向精度衰減因子odop的概念，揭示了雙星定向誤差特殊表現的內部機理，對實際工程應用具有重要的指導意義。
  3. As the recommended final candidate for vice - chancellorship, professor lau met with undergraduate and postgraduate students in four open forums last week, and attended several discussion sessions to improve mutual understanding with representatives of teachers and staff associations, the alumni, the senate, and the university s senior management team

    劉遵義教授在上星期以校長候選人的身份，分別與中大本科生和研究生舉行了四次公開座談會，又與教師協會及職員協會的代表、校友、大學教務會及大學的主管人員會面座談，增進彼此認識及交換意見。
  4. Students of the earth ' s mid - ocean ridge were closely following the incoming data from the galileo mission to jupiter, looking for more hints that an ocean of water - and with it, undersea volcanoes - could exist under the ice that covers jupiter ' s moon europa future interlanetary missions to europa and other promising sites seemed far more likely to find support than they had before mckay ' s announcement

    研究地球大洋洋底形成的海脊的學者也在密切注視探索木星的伽利略號飛船傳回的最新信息：在木星的衛星歐羅巴表面冰蓋下面是否存在著海洋及海底火山的跡象，將來飛往歐羅巴及其他可能有生命的地點的星際航行任務可能會帶來更多的新發現，支持地外生命這一假設。
  5. A planet that may be earth - like - but too hot for life as we know it - has been discovered orbiting a nearby star

    最近，天文學家新發現了一顆類地行星，它圍繞著附近的一顆恆星運轉。但從已知情況來看，其表面溫度太高，不適合生命生存。
  6. Secondly, the finite - element analysis on the typical slope section is performed with establishment of geology model, definition of boundary condition and proper selection of mechanical parameters. the result shows that the slope is of integral stability, and the failure mode mainly comprises infrequent block drop and wedge body breakage. considering the two failure modes of plane failure and wedge body breakage, and stability calculation under different work conditions, the slope stability is discussed and the sensibility ana lysis on its fraction angel and cohesion force is made

    然後通過建立地質模型、確定邊界條件、選擇合理的力學參數，取典型斷面對邊坡進行數值分析，分析結果表明斜坡整體是穩定的，破壞類型以零星掉塊和楔體失穩下滑為主；為了定量計算邊坡的穩定性，對邊坡兩種破壞類型：單滑面下滑和雙滑面楔形體下滑，考慮不同工況進行穩定性計算，並對摩擦角和粘聚力進行穩定的敏感性分析。
  7. Based on chinese tracking and data relay satellite ( ctdrs ) in the future, the antenna pointing control and complex control theory of user satellite are studied deeply in this dissertation, which is funded by the improve item of dept. of astronautic engineering and mechanics ? “ the teaching demonstration of antenna pointing control system in tdrss ”. the main contents of this dissertation are consisted of the following parts : firstly, dynamics equation is derived using lagrange equation for user satellite, so as the kinetics equations of user satellite at the same time are expressed in the form with matrix differential equations that is suitable for attitude control system design and analysis

    本學位論文結合航空宇航科學與技術學科研究生教學基地實驗室建設項目「中繼系統星間鏈路天線指向控制系統教學與演示實驗」 ，以我國跟蹤與數據中繼衛星系統為背景，對某型號用戶星星間鏈路天線指向跟蹤控制和復合控制理論進行深入的研究，研究內容主要包括以下幾個方面: 1 .利用lagrange方程建立了用戶星的動力學方程，同時推導了運動學方程，並將這組動力學方程以矩陣微分方程形式表示，使之適用於姿態控制系統的設計和分析。
  8. Prepared technical parameters were optimized by l9 ( 34 ) experiment analysis. a unique method for cleaning and drying of substrate - cleaning used by scour, drying used by infrared light was fished out by large numbers of experiment. chemical mechnism of zno thin film prepared by sol - gel technique was discussed by dta for the first time. by the measurements of sem, xrd and uvs, the thin film was analysed. the result proved that the thin film with strongly preferred orientation of c - axis perpendicular to the substrate surface which surface was homogenous, dense and crackfree was the crystalline phase of hexagonal wurtzite. the thin film was composed of plentiful asteroidal crystal which crystal dimension approximately 10 30nm. the average transmittance of thin film in visible region was above 90 %. the results of measurements else also proved that the thickness of single dip - coating was 75 240nm, this films resistivity was found to be 3. 105 102 3. 96 105 ? cm. the thickness and resistivity of thin film influenced by dope - content, withdrawal speed, pre - heat - treatment, anealing were reseached respectively

    利用xrd 、 sem以及uvs光譜儀等分析方法對薄膜進行了研究，結果顯示，所制備的薄膜為六方纖鋅礦型結構，具有高c軸擇優取向性；表面均勻、緻密，薄膜材料由許多星狀晶粒組成，晶粒尺寸大約為10 - 30nm左右；薄膜可見光透過率平均可達90 % ；對薄膜厚度以及電學性能進行了測定后發現：單次鍍膜厚度約為75 - 240nm ， al ~ （ 3 + ）離子摻雜型氧化鋅薄膜的電阻率在3 . 015 102 - 3 . 96 103 ? cm范圍內；分別研究了摻雜濃度、提拉速度、預燒溫度、退火溫度等工藝參數對薄膜厚度和電阻率的影響。
  9. Explain that man has entered the space age since the mid 20th century. not only were more planets, asteroids and satellites discovered, but also scientists were able to obtain the information of their surface structures by various means

    說明在二十世紀中期以後，人類進入太空時代，除了發現更多行星小行星和星外，科學家並利用種種不同方法，取得這些星體表面結構的資料。
  10. Ten years ago, when scientists detected the first hot jupiter, they assumed that as the giant exoplanets plowed through debris during their inward migrations, any surrounding material would be similarly ejected

    10年前，科學家們考察了第一個熾熱的木星，他們宣稱在這個巨大的太陽系外行星靠近它的恆星移動時，拋出了很多殘骸，表面的任何物質都可能被拋出
  11. 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
分享到 Line

分享到臉書