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词汇 exa-
释义 exa-pref.(前缀)
  1. One quintillion (1018): 艾可萨:10的18次幂: exahertz.艾可萨赫兹
Etymology语源
  1. Alteration of hexa- [from its representing the sixth power of a thousand] Alteration of hexa- [from its representing the sixth power of a thousand]
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