前言 双层列车是在三面红旗光辉照耀下,我国自行设计、制造的一列新型客车。自一九六三年在上海一杭州区间93/94次运用以来,深受广大工农兵旅客、外宾和归国华侨的欢迎,在国内外享有一定的声誉。但经过较长 Preface The double-decker train is a new type of passenger car designed and manufactured by our country under the bright light of three red flags. Since 1963 it was adopted in 93/94 intervals of Shanghai-Hangzhou section, it has been well received by the broad masses of workers, peasants and soldiers, foreign guests and returned overseas Chinese and enjoys a certain reputation both at home and abroad. But after a long time