Beijing Subway rolls out real-time passenger data
chinadaily.com.cn | Updated: 2017-08-17 14:00
The information will be updated every five minutes.[Photo provided to chinadaily.com.cn] |
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chinadaily.com.cn | Updated: 2017-08-17 14:00
The information will be updated every five minutes.[Photo provided to chinadaily.com.cn] |