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How much is the railway tunnel from Guangyuan to Chengdu?

A lot. According to the query of the National Railway Administration Network, the railway from Guangyuan to Chengdu needs to cross the Qinling Mountains, and there are 30 tunnels in the whole line, with a large number. Railway is the track line of trains and other means of transportation, and transportation is a land transportation mode. Locomotive drives trains and vehicles on two parallel rails.