On-line typesetting system Typesetting system in which the keyboard and output unit are attched at all times on-line to the main system. See Off-line typesetting system.是什么意思_On-line typesetting system Typesetting system in which the keyboard and output unit are attched at all times on-line to the main system. See Off-line typesetting system.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句