x.400 electronic mail systems standard

英 [x.400 electronic mail systems standard]
美 [x.400 electronic mail systems standard]

中文释义

X.400电子邮件系统标准

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单词结构：

x.400 electronic mail systems standard

字母数：38

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  • 单词拼写：x.400 electronic mail systems standard
  • 核心含义：X.400电子邮件系统标准

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更新时间：2026-04-02 10:43:43