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First high-speed train operating in mountains offers 4G coverage

By Jin Dan | chinadaily.com.cn | Updated: 2017-11-09 11:32
First high-speed train operating in mountains offers 4G coverage

A railway staff member shows the equipment used for telecommunication on Xi'an-Chengdu high-speed railway line in Qinling Mountains tunnel. [Photo/Chinanews.com]

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