英语词汇petameter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	petameter
释义	petameter 简明释义 n.佩塔米：长度单位，等于10的15次方米，符号为Pm。词源 1 petameter: peta- +? meter. FROM: wiktionary
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