英语词汇“shepherd satellite”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	shepherd satellite
释义	shepherd satellite (also shepherd moon) noun Astronomy A small moon orbiting close to a planetary ring, especially of Saturn, and whose gravitational field confines the ring within a narrow band.For one thing, the particles in some of the rings are corralled into narrow bands by the so-called shepherd moons: teeny satellites that orbit near the rings.... Atlas and other moons exist outside the main ring system, as do the two F ring shepherd moons, Prometheus and Pandora.
随便看	munyeroo munyeru muon Muong Mu'o'ng muonic muonium muonless muon neutrino muon number muppet Muqabarat muqaddam Muqdisho muqueca MUR mura muraena muraenid murage muraji mural mural crown muraled muralist

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