背景輻射 的英文怎麼說

中文拼音 [bēijǐngfúshè]
背景輻射 英文
background radiation
  • 背 : 背動詞1. （用脊背馱） carry on the back 2. （擔負） bear; shoulder
  • 景 : Ⅰ名詞1 （風景; 景物） view; scenery; scene 2 （情形; 情況） situation; condition 3 （戲劇、電影的...
  • 輻 : 名詞（車輪中車轂和輪圈的連接物） spoke
  • 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） ...
  • 背景 : （布景; 襯托主體事物的景物; 對人物、事件起作用的歷史條件或現實環境） background; backdrop; setting
  • 輻射 : radiation; exposure; radio; beaming
  1. They had found the cool afterglow of the big bang : the cosmic microwave background radiation

    他們發現的是大霹靂冷卻后的餘暉：宇宙微波背景輻射。
  2. Extragalactic background radiation

    河外背景輻射
  3. The electronic temperature, intensities of all lines and continuous spectra gradually increased with the increment of laser energy, and they got to maximum at different laser energy. our results of copper and aluminum show that there are possibly different thresholds of laser energy to electronic temperature and intensities of emission spectra of laser ablated plasma. at the different environmental gas pressure, spatial emission intensity distribution is explained by the competition among " heat reservoir effect ", " confined effect " and " s hadow effect "

    認為cu等離子體羽的發光機制是由電子與粒子的碰撞傳能、電子與離子的復合形成的；隨激光能量的增加， cu等離子體特徵輻射（分立譜） 、連續背景輻射（連續譜） 、電子溫度都出現最大值；結合對al的實驗結果說明：激光燒蝕金屬產生的等離子體，其特徵輻射、連續輻射、電子溫度可能都存在一定的能量閾值；背景氣壓對激光燒蝕等離子體譜線的影響，其機理可以認為是「熱庫效應」 、 「約束效應」及「陰影效應」相互競爭的綜合結果。
  4. But wmap, with its ability to resolves slight temperature fluctuations down to millionths of a degree, is still able to detect these minute differences and produces the finest full sky thermogram of the cosmic background

    但由於wmap的超高靈敏度儀器可測量低至數百萬分之一度的溫差，它才能不負所託，得出至今最精細的全天微波背景輻射溫度圖。
  5. Background radiation intensity

    背景輻射強度
  6. Tegmark is an expert in analyzing the cosmic microwave background and galaxy clustering

    鐵馬克是分析宇宙微波背景輻射與星系團的專家。
  7. For examples, observation of the gravitational lens phenomenon and the scattering phenomenon produced by microwave background radiation and hot plasmas from galaxies clusters

    ，例如利用引力透鏡現象及微波背景輻射與星系團的熱等離子體造成的散射現象等等。
  8. During the intercept flying of endo - atmopheric hypersonic vheicles, an infra - red ( ir ) sensor may be used to detect, acquire, and track the target

    首先介紹高速飛行的紅外導引頭窗口的溫度分佈和窗口周圍的背景輻射計算模型框架。
  9. The study of infrared background radiation of earth and atmosphere by airborne ftir spectrometer

    地球大氣紅外背景輻射光譜特徵研究
  10. By carefully studying the polarity of the background radiation, scientists concluded that the first generation of stars in the universe first ignited to shine at only 200 million years after the big bang, much earlier than expected

    經過細心研究宇宙背景輻射的偏振情況，天文學家得出一個驚人的結論，原來第一代的恆星早於大爆炸后2億年已出現，遠早於早前的估計。
  11. Much of his work bears on the concept of parallel universes : evaluating evidence for infinite space and cosmological inflation ; developing insights into quantum decoherence ; and studying the possibility that the amplitude of microwave background fluctuations, the dimensionality of spacetime and the fundamental laws of physics can vary from place to place

    許多他的工作都含有平行宇宙的概念：評估無限大空間與宇宙暴脹的證據，發展對量子去相干現象的洞察，以及研究諸如微波背景輻射漲落的振幅、時空的維度以及物理的基本定律可隨位置而變化的可能性。
  12. The calculating results are very important to design ir cooled window and sensor in supersonic vehicle

    描述了窗口背景輻射和紅外傳感器的信噪比計算方法。
  13. Follow appropriate rules and regulation to establish standards and carry out monitoring activities around nuclear power plants as well as background radiation investigations

    二、依據相關法規訂定與執行核設施周圍環境輻射偵測及背景輻射調查。
  14. Abstract : the reflective characteristics of sea and sky background radiation, which have important effect on the infrared signature from flight vehicle above sea, are studied in the paper. the statistical distribution of wave facet directions is discussed, the effects of randomly riging and falling sea wave on the sea surface radiation and on the sun light reflection are also discussed. calculation methods of irradiance from sea surface radiation and reflected sun light on observation point are derived in the paper. finally a computation example is given, which shows the sea and sky background radiation has important effect on infrared characteristic especially in the front area of a flight vehicle

    文摘:研究了對近海飛行體的紅外特性有重要影響的海空背景輻射的反射特性.討論了波浪面起伏隨機規律，隨機起伏對海面自身輻射及對陽光反射的影響，推演了此種隨機起伏波浪面的自身輻射及反射的陽光在觀測點形成的輻照度的計算方法.給出的算例結果表明，海空背景對飛行體的紅外特性尤其對其前半球的紅外特性有重要的意義
  15. According to big bang theory, the early universe is a hot, dense and opaque fluid of electrons and protons. this hot plasma constantly emits, scatters and reabsorbs photons and is the source of the cosmic background radiation

    根據大爆炸理論，早期的宇宙主要由電子和質子組成，是一團高密度極端熾熱不透光的等離子體，它不斷放射散射和吸收光子，是宇宙背景輻射的源頭。
  16. For hot rolling steel production, the condition on site is poor, temperature measurement is restricted by transmitting rate, background radiation and transmission loss of optical route

    對現場條件比較惡劣的熱軋生產，它的測溫受到發射率、背景輻射、光路傳輸損失等因素的制約。
  17. The nobel prize in physics goes to john mather and george smoot " for their discovery of the blackbody form and anisotropy of the cosmic microwave background radiation

    2006年的諾貝爾物理學獎授予了美國科學家約翰?馬瑟和喬治?斯穆特，以表彰他們發現了宇宙微波背景輻射的黑體形式和各向異性。
  18. Scientists used wilkinson microwave anisotropy probe wmap to capture the cosmic portrait that reveals the afterglow of the big bang, i. e. the cosmic microwave background radiation

    科學家利用威爾金森微波各向異性探測器wilkinson microwave anisotropy probe ， wmap ，測量來自不同方向的宇宙微波背景輻射，展示了大爆炸后的餘輝。
  19. Cosmic background radiation

    宇宙背景輻射
  20. " for their discovery of cosmic microwave background radiation

    發現宇宙微波背景輻射
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