主語：This
謂語：meant
賓語從句：that the advent of smaller,faster,more reliable and less expensive computers than that were possible with vacuum-tube machines賓語從句怎么分析？引導(dǎo)詞：that 主語：the advent 主語補語：of smaller,faster,more reliable and less expensivecomputers than that 系動詞：were 表語：possible 介詞短語作方式狀語：with vacuum-tube machines翻譯：這意味著使用電子管機器，比這更小、更快、更可靠、更便宜的計算機的出現(xiàn)會成為可能。