Phones have been using US satellites as a backup
THEVERGE.COM
Europe’s GPS alternative has been offline since Friday
「華人戴明學院」是戴明哲學的學習共同體 ，致力於淵博型智識系統的研究、推廣和運用。 The purpose of this blog is to advance the ideas and ideals of W. Edwards Deming.
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