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Highlights of 2018 China intl big data industry expo

( Xinhua )

Updated: 2018-05-27

Highlights of 2018 China intl big data industry expo
Visitors view an expressway mobile payment system during the 2018 China international big data industry expo in Guiyang, Southwest China's Guizhou province, May 26, 2018. [Photo/Xinhua]
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