trans-Neptunian object

短语

词形变化

trans-Neptunian objects 复数 trans-Neptunian objects

别名

TNO transneptunian object

释义与例句

n.
  1. 1.

    Any natural object (usually a minor planet (asteroid) or a hypothetical planet) in the Solar System with all or most of its orbit outside the orbit of Neptune.

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