射電波 的英文怎麼說

中文拼音 [shèdiànbō]
射電波 英文
radio waves
  • 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） ...
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 電波 : [電磁] radio wave; electric wave; hertzian wave
  1. He baoyu ( aerocraft design ) directed by wu ji synthetic aperture technology in radio astronomy is introduced into microwave radiometer since 1980 ' s

    八十年代以來，為改善微波輻射計性能，人們將射電天文觀測中的孔徑綜合技術引入到微波輻射計設計中，開始了綜合孔徑輻射計的研究。
  2. The free-bound continuum is strongest in the optical regime, whereas the free-free continuum dominates in the radio and infrared regimes.

    自由-束縛連續輻射在光學波段最強，自由-自由連續輻射主要在射電和紅外波段。
  3. Much data can be obtained by measuring the dispersion of cosmic radio waves passing near the sun.

    測定穿過太陽附近的宇宙射電波的色散度也可以獲得許多資料。
  4. To keep the environment people live in, we should restrict or prevent many kinds of pollution, which includes electromagnetic radiation pollution. while we are considering setting up base station or evaluating the electromagnetism pollution of environment, we can measure on the spot. to save time, hard work and cost taken by measuring on spot, it is necessary to calculate and analyze the electromagnetic wave propagation in urban area

    在對現有電磁輻射源（如移動通信基站、廣播電視發射天線等）環境電磁污染狀況進行評估時可以進行實地測試，但是對在建或擬建的輻射源則不可能進行先測試，同時為了避免實地測試的費時、費力和較大的測試費用，通過計算機來計算分析城市環境電波傳播顯得很有必要。
  5. The most obvious advantage is that because of their inability to scatter appreciably, nebular radio waves completely and genuinely delineate the distribution of nebular gas.

    因為星雲對射電波的散射很小，所以最明顯的優點就是能夠全面而真實地勾畫出星雲氣體分佈的外貌。
  6. On this condition, the paper put forward a new electric wave transmition model in the microcell, which based on ray tracing method of virtual fountain tree

    在總結前人工作的基礎上，本文提出了一種新的基於「虛擬源樹」射線跟蹤技術的微蜂窩小區的電波傳播模型。
  7. The experimental results show : the flattop phenomenon on the diode voltage pulse was very apparent for using the carbon fiber cathode, that is to say, the pulse duration of the diode voltage was widened ; moreover, under the condition of the same power of microwave, the pulse duration of the out - put microwave was prolonged by about 30 % ; the peak power of the microwave was enhanced by 3db

    通過在裝置上做的兩種陰極的對比實驗，結果顯示:碳纖維陰極的使用，改善了電子束質量，使輻射微波的脈寬增加了30 %以上，輻射主瓣方向上的功率密度提高了3db以上，頻譜分佈較純凈，實現了微波的高效輸出。
  8. Above this 34 - m antenna, called dss - 13, is one of those large dishes of the deep space network in goldstone, california and is primarily used for receiving echoes reflected from asteroids when they are beamed by groundbased radio signals

    圖上這座口徑34米的天線，編號dss - 13 ，隸屬美國加州的深空網路。當天文學家從地面向小行星發射無線電波時，小行星會把部分電波反射回地球，並由dss - 13所接收。
  9. Above ) this 34 - m antenna, called dss - 13, is one of those large dishes of the deep space network in goldstone, california and is primarily used for receiving echoes reflected from asteroids when they are beamed by groundbased radio signals

    （圖上）這座口徑34米的天線，編號dss - 13 ，隸屬美國加州的深空網路。當天文學家從地面向小行星發射無線電波時，小行星會把部分電波反射回地球，並由dss - 13所接收。
  10. The model is based on the theory of physical optics ( po ), geometry theory of diffraction ( gtd ) and uniform theory of diffraction ( utd ), and it can compute and analyze the propagation of em wave in microcellular environments by using improved ray tracing method

    該模型基於物理光學（ po ） 、幾何繞射理論（ gtd ） 、一致性繞射理論（ utd ） ，利用改進的射線跟蹤法對微蜂窩中電波傳播特性進行了數值分析計算。
  11. Mixers are the key components of many microwave and millimeter - wave systems. the super - heterodyne receiver is always applied in modern communication system, mixer becomes the key component as is at the first part of system. but it is more and more difficult to get the choiceness lo source of the same band with the system is working at high frequency especially in the millimeter - wave. sub - harmonic mixer is a good solution to this problem now. in this circuit we need just half 、 quarter 、 even 1 / 8 of the rf signal frequency. in this paper the design and fabricate of sub - harmonic hmic mixers ( 2, 4 ) at w - band are introduced

    混頻器是微波通信、射電天文學、雷達、等離子物理、遙控、遙感、電子對抗，以及許多微波測量系統中至關重要的部件。在現代通信系統中，毫米波頻段通常採用超外差接收機，混頻器作為第一級就成為關鍵部件。由於在毫米波頻段，同頻段高性能的本振源成本高，技術難度大，採用分諧波混頻技術是解決此問題的有效途徑，只需射頻頻率1 / 2 、 1 / 4甚至1 / 8的本振頻率即可實現混頻。
  12. The ability of the ionosphere to reflect these waves is dependent upon normal variations in the electron density at different levels.

    電離層反射電波的能力取決于不同高度上電子密度的正常差別。
  13. The region is otherwise undistinguished at optical and radio wavelengths, but it does contain a number of oh and maser sources.

    此區在光學和射電波段是不著名的，但卻包含有許多OH和微波激射源。
  14. Ironically, the detailed reasons as to how the radio beam is produced may not be important astronomically.

    具有諷刺意義的是，產生射電波束的詳細原因在天文上，這也許並不重要。
  15. < uk > the region is otherwise undistinguished at optical and radio wavelengths, but it does contain a number of oh and maser sources. < / uk >

    < uk >此區在光學和射電波段是不著名的，但卻包含有許多oh和微波激射源。 < / uk >
  16. Only radio, near-infrared, and visible light waves can be studied within the earth's atmosphere.

    在地球的大氣層以內，只能對射電波、近紅外波和可見光波進行研究。
  17. . . to reflect my laser beam right back at me

    . . .使得它剛好反射我的鐳射電波給我
  18. But certain stars, called pulsars, give off regular pulses of radio waves

    但有些恆星，所謂的脈沖星，會有規律地發出射電波脈沖。
  19. The past twenty years saw the significant progress in astronomical observation when new instruments have come online to explore the distant universe across the electromagnetic spectrum and spacecraft have flown to probe the nearby members of the solar system, bringing a new understanding of our universe

    過去二十年，天文探測的發展一日千里。由射電波至伽瑪射線等不同波段的儀器相繼啟用，而各類型的太陽系探測器也帶來豐富的成果，使人類對宇宙有了新的認識。
  20. To reflect my laser beam right back at me

    .使得它剛好反射我的鐳射電波給我
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