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据唐本亭(tang ben ting)介绍,4K高清视频的峰值(feng zhi)速率大约每秒40M,4G网络(wang luo)中单纯下载观看勉强能够支撑,有时画质还不好。但如果遇到现场直播,要同时应付(ying fu)数据上传与下载,4G网络(wang luo)就难...