[问题] wifi讯号&手机讯号都有上下箭头?

楼主: RDSON (Rds(on))   2016-01-21 00:11:22
wifi讯号&手机讯号都有上下箭头?
请问一下是什么意思?
如图
http://i.imgur.com/nuyIc0s.jpg
作者: TakeshiChann (阿武)   2016-01-21 00:34:00
手机是哪一款呢?

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