英语词汇planetesimal hypothesis怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	planetesimal hypothesis
释义	planetesimal hypothesisn. the theory that planets were formed by the accretion of planetesimals in a cold state (有关行星形成的)星子假说
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