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介绍了用贡献比例法计算铁路通信业务总量和投入产出比,提出了一种计算铁路通信经济效益的宏观方法,并给出计算实例。
This paper introduces the contribution ratio method to calculate the total railway communication business and the input-output ratio. A macroscopic method to calculate the economic benefits of railway communication is proposed and a calculation example is given.