A self-driving sweeper car is put into service at Inner Mongolia Normal University in Hohhot, north China's Inner Mongolia Autonomous Region, Jan. 9, 2019. (Xinhua/Ding Genhou)
Self-driving sweeper car put into service in Hohhot, N China's Inner Mongolia
Source: Xinhua| 2019-01-09 22:25:53|Editor: Liangyu
