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for (var i = 0,len = adKeys.length; i 原標題:西延高鐵實現5G全覆蓋 西延高鐵開通在即,作為西北地區首條一次性建成全線公網5G覆蓋的高速鐵路,將為乘客提供流暢的車廂內上網體驗。中國移動、中國電信、中國聯通三家運營商的4G與5G信號均已實現全線覆蓋。 西延高鐵橋隧占比高,如何在列車駛入隧道時保持信號不中斷? 西延高鐵全線在隧道內鋪設的漏纜和在隧道外設置的組合式角鋼塔,共同構建了一張連續、穩定的通信網絡,為延安首條高鐵注入“智慧動能”。 記者:梁愛平 藺娟 付瑞霞 新華社音視頻部制作

西延高鐵實現5G全覆蓋


