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perihelion例句_perihelion英汉例句_perihelion双解例句_歐米惠必应词典
歐米惠必应词典

perihelion

P 开头单词

常见例句

    用作名詞 (n.)

  • A comet is at perihelion when it is closest to the sun.
    彗星最接近太陽時，它就是在近日點。
  • The anomalistic year is the time between successive transits of the Earth through the perihelion.
    近點年是地球連續兩次通過近日點之間的時間。
    • 返回 perihelion