We presented a Security Protocol for Ubiquitous Environments (SPUE), which provided data authentication, and data freshness besides unobtrusiveness.是什么意思_We presented a Security Protocol for Ubiquitous Environments (SPUE), which provided data authentication, and data freshness besides unobtrusiveness.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句