400 (88) series of recommendations specified by CCITT defines the Message Handling System (MHS) , which support one of the most important applications of computer networks .是什么意思_400 (88) series of recommendations specified by CCITT defines the Message Handling System (MHS) , which support one of the most important applications of computer networks .在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句