英英辞典 - English Dictionary | CUERBO - クエルボ英語辞書

equator

noun

  1. an imaginary line around the Earth forming the great circle that is equidistant from the north and south poles

    地球の南極と北極から等距離の所で大きな円を描く想像上の線

  2. a circle dividing a sphere or other surface into two usually equal and symmetrical parts

    球、または他の面を、通常均等で対称な2つの部分に分ける円

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