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English thesaurus | |||
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X. 400 (An international messaging standard that can be used by a variety of messaging systems. X.400 uses a strict addressing method that reflects a hierarchical environment. The use of X.400 has been largely supplanted by the combination of SMTP and MIME) | |||
Electronic Mail | |||
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400 |
X 系列规则 400 应用程序设计接口协 : 2 phrases in 2 subjects |
Electronics | 1 |
Textile industry | 1 |