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土卫四是土星轨道上第二大卫星,它比土卫二和土卫三远离土星,因此受到的潮汐热作用较小。尽管如此,许多科学家相信它
Titan is the second largest satellite on Saturn’s orbit, which is far less affected by tidal heat than either Saturn II or Saturn III. Nonetheless, many scientists believe it