Maintenance workers examine a bullet train in Kunming, southwest China's Yunnan Province, July 20, 2021. In the ongoing summer holiday travel season, China Railway Kunming Bureau Group Co., Ltd. has carried out train maintenance work on a daily basis to ensure safety. (Xinhua/Hu Chao)
Maintenance workers examine bullet train in Kunming, Yunnan
Source: Xinhua| 2021-07-20 22:22:57|Editor: huaxia