noun🔗Share小行星， asteroid An asteroid of any size"1979 Tsunami generation by pelagic planetoid impact"1979年由远洋小行星撞击引发的海啸astronomyspaceChat with AIVocabulary GamePractice Reading
noun🔗Share小行星，类行星体 An asteroid-like body in an orbit beyond the asteroid belt, such as a centaur or Kuiper belt object"Astronomers study planetoids like Pluto and other Kuiper belt objects to understand the early formation of our solar system. "天文学家研究像冥王星和其他柯伊伯带天体这样的类行星体(小行星)，以了解我们太阳系的早期形成。astronomyspaceChat with AIVocabulary GamePractice Reading
noun🔗Share小行星，矮行星。 A larger, planetary, body in orbit around the Sun, such as Vesta or (candidate) dwarf planets such Eris or Sedna"1991 Optimal trajectories for an ion driven spacecraft from earth to the planetoid Vesta"1991年，一篇论文探讨了使用离子驱动飞船从地球到小行星灶神星的最佳轨道。astronomyspaceChat with AIVocabulary GamePractice Reading
noun🔗Share矮行星，类行星。 A dwarf planet"Astronomers are studying the characteristics of several planetoids located in the Kuiper Belt, to learn more about their composition and formation. "天文学家们正在研究位于柯伊伯带的几颗**矮行星（类行星）**的特征，以了解更多关于它们的组成和形成的信息。astronomyspaceChat with AIVocabulary GamePractice Reading
