从2020年到2025年，中国三大电信运营商预计将投入人民币共9000亿至1.5万亿元用于5G网络建设。
China's big three telecom carriers are forecast to spend 900 billion to 1.5 trillion yuan in total on 5G network construction from 2020 to 2025.
中国三大电信运营商已公布取消国内漫游费的计划，将来将主要依靠4g服务来获取收益。
China a's major telecom operators have announced plans to cancel domestic roaming charges as they are instead turning to 4g services as a major source of profit.
中国联通是中国三大电信运营商之一，提供集宽带、固话及移动通信业务为一体的全业务通信服务。
China Unicom is one of the leading telecommunication operators in China, providing integrated telecommunication service in terms of broadband, fixed-line and mobile communication.
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