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astronomical unit

/ˌæstrəˈnɒmɪkəl ˈjuːnɪt/

翻译: 天文学中使用的长度单位,约等于地球与太阳的平均距离,约为1.496亿公里(9300万英里)。

1 个条目

phrase

/ˌæstrəˈnɒmɪkəl ˈjuːnɪt/C1formalscientific
  • zh天文学中使用的长度单位,约等于地球与太阳的平均距离,约为1.496亿公里(9300万英里)。

A unit of length used in astronomy, approximately equal to the average distance between the Earth and the Sun, about 149.6 million kilometers (93 million miles).

  1. Unit of distance in astronomyC1formal

    A unit of length equal to the average distance between the Earth and the Sun, used to measure distances within the solar system.

    zh天文单位

    • The distance from the Sun to Mars is about 1.5 astronomical units.
    • Astronomers use the astronomical unit to describe planetary orbits.
    • One astronomical unit is approximately 149.6 million kilometers.