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perihelion

/ˌpɛr.ɪˈhiː.li.ən/

翻译: 名词,指行星、彗星或其他天体绕太阳运行的轨道上离太阳最近的一点。

1 个条目

noun

/ˌpɛr.ɪˈhiː.li.ən/C2formalscientific
  • zh名词,指行星、彗星或其他天体绕太阳运行的轨道上离太阳最近的一点。

A noun referring to the point in the orbit of a planet, comet, or other celestial body around the sun where it is closest to the sun.

  1. Closest point to the SunC2formalscientific

    The point in the orbit of a planet, asteroid, or comet where it is nearest to the Sun.

    zh近日点

    • Earth reaches its perihelion in early January each year.
    • The comet's orbit brings it to perihelion every 75 years.
    • Scientists calculated the exact time of the spacecraft's perihelion.

    反义词aphelion

词形
  • perihelia plural form
  • perihelia's possessive plural form
  • perihelion's possessive singular form