单词：encoding altimeter
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There's no doubt that a stream of giant bubbles could theoretically have sunk the U.S.S.'Cyclops'. Whether the bubbles were there or not, that's not for us to say. But I'll leave that up to the oceanographers. But could methane gas also explain the d
发表于:2019-01-22 / 阅读(76) / 评论(0)
自然百科2010年
自然百科2010年