射電天文 的英文怎麼說

中文拼音 [shèdiàntiānwén]
射電天文 英文
radio astronomy
  • 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...
  • 文 : Ⅰ名詞1 （字） character; script; writing 2 （文字） language 3 （文章） literary composition; wri...
  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. Radio astronomy today is armed with the largest antennas in the world.

    射電天文學擁有世界上最大的天線。
  3. In modern radio astronomy, these radio celestial bodies are called " discrete sources ? cassiopeia a, cygnus a and taurus a are some examples of discrete sources. the letter " a " represents a strong radio source

    在現代的射電天文學中，這些射電天體稱作分立射電源，例如仙后座a ，天鵝座a和金牛座a等， a是代表強的射電源。
  4. Extragalactic radio astronomy

    河外射電天文
  5. 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。
  6. Foremost among the techniques used to study dense interstellar region is molecular radio astronomy, a relatively new and rapidly developing interdisciplinary science.

    在用來研究高密星際區域的技術中，最重要的是分子射電天文學；這是一門較新的發展迅速的邊緣科學。
  7. Radio astronomers are now able to synthesize the response of a partially filled aperture of large diameter and thus to map variations in nebular brightness.

    射電天文學家現在已經能夠把部分充滿的大直徑孔徑進行綜合，從而描繪出星雲亮度變化圖。
  8. In none of these respects does optical astronomy have any advantage over radio astronomy.

    在所有這些指標上，射電天文並不比光學天文遜色。
  9. Sub - arcsec radio astronomy

    亞角秒射電天文學
  10. Interference to radio astronomy observatory service and protection of electromagnetic environment

    射電天文業務干擾評價和電磁環境保護探討上
  11. The technique has been highly successful in radio astronomy, and in both satellite and aircraft borne radar

    該技術在射電天文學、衛星雷達和機載雷達上均獲得了巨大成功。
  12. Mark adams, a spokesman for the national radio astronomy observatory, says that his institute has not yet been told how much money it must raise to keep the vlba open

    國家射電天文臺的發言人，表示他的協會還沒有被告知要提高多少錢才能維持vlba運行。
  13. Hopefully, people in hong kong will have a chance to operate a radio telescope soon

    希望于不久的將來，香港?民亦有機會一嘗操作射電天文望遠鏡的滋味。
  14. We are used to calling an instrument of this kind in optics a telescope, and the radioastronomical counterparts are therefore briefly named "radio telescope".

    在光學上我們通常稱這種類型的儀器叫望遠鏡，因而射電天文學上的對應物簡稱為「射電望遠鏡」。
  15. In hong kong, it is becoming difficult to find a starry night. radio astronomy may be helpful in overcoming this difficulty since radio telescopes are usable at all times and at any weather conditions

    在香港，天文愛好者想找一個繁星點點的晚上已經不容易，然而射電天文學可突破這個障礙，因為射電天文望遠鏡可以全天候，不分晝夜運作。
  16. As a role instrument, microwave radiometers have been employed in radio astronomy, remote sensing, missile guide and measurement of objective characteristic extensively, with typical mode of all - power radiometer and dicke radiometer

    微波輻射計在微波遙感儀器中佔有重要的地位，在射電天文、遙感、制導和目標特性測量等方面得到了廣泛的應用。
  17. The first serious attempt to listen for possible radio signals from other civilizations was carried out at the national radio astronomy observatory in greenbank, west virginia, in 1959 and 1960

    第一次系列地收聽來自其他文明社會的可能的無線電信號，於1959年和1960年在位於西弗吉尼亞的格林邦克的國家射電天文臺里進行。
  18. However, radio telescopes do have their own shortcoming. firstly, radio astronomical images are not as fascinating as optical images. moreover, they do not work like optical telescopes which can receive all visible wavelengths and then produce monochromatic signals by means of filters

    可是，射電天文望遠鏡也有它的缺點，首先射電天文圖像並沒有光學照片那麼具美感，而且它不像光學望遠鏡般，可以把可見光全部接收，然後加上濾色片分出單色光。
  19. Why can radio astronomers observe during the day, whereas optical astronomers are ( for the most part ) limited to nighttime observing

    譯文:為什麼射電天文學家可以在白天觀測，而光學天文學家的絕大多數觀測只能在夜晚進行
  20. Furthermore the " microflare theory " tried to discuss and find the elementary flares in small space and time scale which might form and trigger the whole solar flare. the detection of radio fine structures showed many observational evidences of " microflare ". the observations and theoretical researches on radio fine structure have been developed fast recently and played an important role in solar radio astrophysics

    著名的「微耀斑理論」 ，試圖從較小的時間、空間尺度范圍探究太陽耀斑形成和觸發的基本單元，而射電精細結構是微耀斑理論的重要觀測基礎，對射電精細結構的觀測和理論研究已成為太陽射電天文學中快速發展的領域，對揭示太陽活動源區的物理本質具有重要的意義。
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