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As a result, the geographic conditions brought many challenges, including the high altitude and lack of oxygen, to the operation of the railway, according to the company's executives.

As for the AI research institute, it has established three joint laboratories, including one with the team led by Zhong, the academician from the Chinese Academy of Engineering, to jointly promote the research and application of smart wearables for respiratory health management.

As a subsidiary of China Southern Power Grid, Shenzhen Power Supply Bureau set up an ICT lab with Huawei last November, focusing on the innovative combination of AI and the Internet of Energy.

As air pollution hits many Chinese cities, education departments in some areas have taken action to promote air purifiers at schools in recent years.

As a new driving force for consumption, sales of online goods and services only increased 1.7 percent year-on-year, down 14.8 percentage points from the 16.5-percent growth rate in the first quarter of 2019. In the first quarter of this year, consumption dragged negative GDP growth by 4.36 percentage points, accounting for more than 60 percent of the negative GDP growth.