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經過科學計算月地之間距離為384402.15千米 38萬4千4百千米! 但有時近有時遠!月球繞地球運行的軌道不是渾圓的;而是橢圓的,地球佔據著兩個圓心中間的一個;囙此,月球離地球有時近.有時遠,用天文學術語說,·它有時在近地點, 有時在遠地點.
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