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威纶通触摸屏上接U盘使用，要注意些什么呢？
现在屏上基本都具备U盘口 那么，在接上U盘使用的时候，有哪些注意点呢 有此疑惑的小伙伴们 一定要看这个视频哦
威纶通触摸屏实用功能——技能提升 质的飞跃27/52
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