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近年来,苏联铁路广泛组织开行合并列车,许多铁路局和分局在这方面积累了丰富的经验。采用这样一种提高输送能力的措施,无须花费大量投资,既能取得显著的效果,而且见效很快。有些铁路区段在某一段时间内,为了输送大量的季节性物资或由于其他原因,需要大幅度地增加输送能力,开行合并列车(一般只是两列合并)是一项极有效的解决办法。两个普通列车(指按规定重量标准或计长编组的货物列车,下同)合并时,通常是一台机车(或一台以上)挂在头部,另一台机车(或一台以上)挂在合并列车的中部。只有在个别情况下,当合并后的列车全长不超过1,200—1,300米时,才允许把所有机车都挂在列车头
In recent years, the Soviet Union railway has extensively organized the merger of trains, and many railway bureaus and branch offices have accumulated rich experience in this respect. Adopting such a measure to increase transport capacity can achieve significant results without any significant investment and achieve quick results. In some railway sections, it is an extremely effective solution to start a combined train (usually just two columns of mergers) in order to deliver a large amount of seasonal goods or for other reasons requires a substantial increase in delivery capacity. When two ordinary trains (referring to goods trains grouped according to the specified weight standards or gauge length, the same below) are usually combined, one locomotive (or more than one locomotive) is hung on the head and the other locomotive (or one locomotive) Hanging in the middle of the combined train. Only in individual cases is it permissible to hang all locomotives on the train head when the combined train length does not exceed 1,200-1,300 meters