視照相星等 的英文怎麼說

中文拼音 [shìzhàoxiāngxīngděng]
視照相星等 英文
apparent photographic magnitude
  • : Ⅰ動詞1. (看) look at 2. (看待) regard; look upon 3. (考察) inspect; watch Ⅱ名詞(姓氏) a surname
  • : Ⅰ動詞1 (照射) illuminate; light up; shine 2 (反映) reflect; mirror 3 (拍攝) take a picture ...
  • : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
  • : 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...
  • : Ⅰ量詞1 (等級) class; grade; rank 2 (種; 類) kind; sort; type Ⅱ形容詞(程度或數量上相同) equa...
  • 照相 : 1 (拍照) take a picture; take pictures; take photographs; take photos; photographing base; phot...
  • 星等 : [天文學] magnitude; star magnitude; stellar magnitude; brightness
  1. For the problem of navigation planning, the selection of the navigation signpost, asteroids and the planning of the photoing sequence are important matter. this dissertation proposes criterions, including visible magnitude, distance, relative velocity, angle of sight lines, on selection of asteroids, based on the trajectory scheme of exploring ivar

    對于導航小行篩選問題,提出了基於小行可見、距離、對速度、線夾角的篩選準則,並利用綜合評估的方式進行導航小行的篩選;對于小行序列規劃問題,分別採用反復最鄰近法和改進的遺傳演算法進行求解,並對兩種方法進行了比較分析。
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