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angular size中文是什么意思

  • 角大小

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  • 例句與用法
  • As a natural limit for angular resolution, one may take the angular size of the central diffraction disk .
    我們可以取中心衍射環(huán)的角直徑作為角分辨率的一種自然極限。
  • The combination of very large radio flux and exceedingly small angular size means that the sources have a fantastic surface brightness .
    極大的射電流量同極小的角經(jīng)集于一身,意味著這些發(fā)射源有難以置信的高表面亮度。
  • The intervening matter between the source and the observer gravitationally deflects and focuses the light bundle, increasing the apparent angular size of the source .
    光源與觀測者之間的物質對光束產生引力偏折和聚焦作用,使光源的視角徑加大。
  • The angular size of the moon viewed from the earth is about 0 . 5
    從地球看來,月球的視直徑即月面最遠兩點的角距約為0 . 5度。
  • Thus , we can use our hands to measure roughly the angular sizes of various objects
    換句話說,我們可以用自己的手作量角器,量度天體的大小或距離。
  • Since the distance between the moon and the earth is not constant , the angular size of the moon can have a small variation
    由于地球和月球的距離并不固定,所以在地球看來,月球的角大小亦會出現(xiàn)變化。
  • The angular size , measured in degrees or arc seconds , which is very important in astronomy , is not commonly used in everyday life
    我們亦會介紹一個天文學上非常重要,但日常生活很少接觸到的概念角距和角大小。
  • It could happen that the moon is at the right position , but its angular size is too small to cover the whole sun . hence , there will be an
    有時,月球雖然處于能造成日食的位置,但由于月球的角大小不足以掩蓋整個太陽,便會出現(xiàn)
  • During solar eclipse , if the angular size of the moon is larger than that of the sun , the sun will be totally covered , resulted in total solar eclipse
    日食solar eclipse時太陽被月球所侵蝕與及月食lunar eclipse時月球被地影所蠶食的意思亦顯而易見。
  • At arm s length , the angular size of our fists is about 10 , fingers is about 1 and the tip of the thumb to the tip of the little finger of an extended hand is about 20
    將手伸直后,拳頭的角大小約為10度,手指約為1度,若把手掌張開,由拇指尖至小指尖的角距則約為20度。
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