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为提高线路的运输能力,以适应国民经济发展的需要,“七五”期间将对大量旧线进行技术改造,从做好旧线改造出发,对改造中的几个问题提些意见。
In order to meet the needs of the development of national economy and to meet the needs of national economic development, a large number of old lines will be undergoing technological transformation during the “Seventh Five-Year Plan” period. Starting from the reconstruction of old lines, some opinions on some problems in reconstruction will be put forward.