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City to use THz scanners for security checks
By:Wu Qiong  |  From:english.eastday.com  |  2018-12-26 08:52

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City to use THz scanners for security checks
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If you happen to see some giant machines at the security checks points in the city’s metro stations, do not be surprised. Those machines are terahertz (THz) scanners to be put to mass use in Shanghai’s metro stations.

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