![Photo shows the new subway trains with a top speed of 140 km/h in Chengdu, Sichuan Province, June 13, 2019. (Photo/China News Service)](http://www.ecns.cn/hd/2019/06/13/cb1cc3437b5a42668fb8f252040be522.jpg)
Photo shows the new subway trains with a top speed of 140 km/h in Chengdu, Sichuan Province, June 13, 2019. (Photo/China News Service)
![Photo shows the interior of the new subway trains with a top speed of 140 km/h in Chengdu, Sichuan Province, June 13, 2019. (Photo/China News Service)](http://www.ecns.cn/hd/2019/06/13/140ef252879b4000a7375e568e276e7d.jpg)
Photo shows the interior of the new subway trains with a top speed of 140 km/h in Chengdu, Sichuan Province, June 13, 2019. (Photo/China News Service)
![Photo shows the new subway trains with a top speed of 140 km/h in Chengdu, Sichuan Province, June 13, 2019. (Photo/China News Service)](http://www.ecns.cn/hd/2019/06/13/87914b9c338349419bee02ddf1a6db40.jpg)
Photo shows the new subway trains with a top speed of 140 km/h in Chengdu, Sichuan Province, June 13, 2019. (Photo/China News Service)
![Photo shows the new subway train with a top speed of 140 km/h in Chengdu, Sichuan Province, June 13, 2019. (Photo/China News Service)](http://www.ecns.cn/hd/2019/06/13/70933741e0c84fb098aa81af1ebf3c3f.jpg)
Photo shows the new subway train with a top speed of 140 km/h in Chengdu, Sichuan Province, June 13, 2019. (Photo/China News Service)