Ring-derived moons 土星小卫星的形成机制
derived moons
派生的卫星
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Like Pluto's three other moons, Charon, Nix and Hydra, they need to be assigned names derived from Greek or Roman mythology.
ENGADGET: Pluto moon names to be selected by public voting, we talk to astronomer Mark Showalter
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