同义词： minor planet
以上来源于: WordNet
N → another name for asteroid
"Regions of outward migration allow planets and planetoids to survive, " Mac Low said.
麦克·劳说：“向外迁移的地区使行星和小行星得以生存。”
Others are irregular fragments of such planetoids brought about by collisions.
其他一些星体则是由小行星碰撞产生的不规则碎片组成。
A simulated low-speed crash between comparably sized planetoids yields a Pluto and a Charon, plus an icy debris disk that could coalesce into a Nix and a Hydra.
两颗相似大小的行星在模拟低速碰撞中产生了冥王星和卡戎，还有可以形成尼克斯和许德拉的并碎屑。
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