A railway worker conducts maintenance checks on a CR200J bullet train at a workshop in southwest China's Chongqing Municipality, Jan. 7, 2020. The Chongqing section of China Railway Chengdu Group Co., Ltd recently organized maintenance checks on CR200J trains, a new member of China's Fuxing bullet trains, to prepare for the upcoming Spring Festival travel rush. (Xinhua/Tang Yi)
A railway worker conducts maintenance checks on a CR200J bullet train at a workshop in southwest China's Chongqing Municipality, Jan. 7, 2020. The Chongqing section of China Railway Chengdu Group Co., Ltd recently organized maintenance checks on CR200J trains, a new member of China's Fuxing bullet trains, to prepare for the upcoming Spring Festival travel rush. (Xinhua/Tang Yi)
A railway worker conducts maintenance checks on a CR200J bullet train at a workshop in southwest China's Chongqing Municipality, Jan. 7, 2020. The Chongqing section of China Railway Chengdu Group Co., Ltd recently organized maintenance checks on CR200J trains, a new member of China's Fuxing bullet trains, to prepare for the upcoming Spring Festival travel rush. (Xinhua/Tang Yi)
A railway worker cleans a CR200J bullet train at a workshop in southwest China's Chongqing Municipality, Jan. 7, 2020. The Chongqing section of China Railway Chengdu Group Co., Ltd recently organized maintenance checks on CR200J trains, a new member of China's Fuxing bullet trains, to prepare for the upcoming Spring Festival travel rush. (Xinhua/Tang Yi)
A railway worker conducts maintenance checks on a CR200J bullet train at a workshop in southwest China's Chongqing Municipality, Jan. 7, 2020. The Chongqing section of China Railway Chengdu Group Co., Ltd recently organized maintenance checks on CR200J trains, a new member of China's Fuxing bullet trains, to prepare for the upcoming Spring Festival travel rush. (Xinhua/Tang Yi)
Railway workers conduct maintenance checks on a CR200J bullet train at a workshop in southwest China's Chongqing Municipality, Jan. 7, 2020. The Chongqing section of China Railway Chengdu Group Co., Ltd recently organized maintenance checks on CR200J trains, a new member of China's Fuxing bullet trains, to prepare for the upcoming Spring Festival travel rush. (Xinhua/Tang Yi)
A railway worker conducts maintenance checks on a CR200J bullet train at a workshop in southwest China's Chongqing Municipality, Jan. 7, 2020. The Chongqing section of China Railway Chengdu Group Co., Ltd recently organized maintenance checks on CR200J trains, a new member of China's Fuxing bullet trains, to prepare for the upcoming Spring Festival travel rush. (Xinhua/Tang Yi)
A railway worker conducts maintenance checks on a CR200J bullet train at a workshop in southwest China's Chongqing Municipality, Jan. 7, 2020. The Chongqing section of China Railway Chengdu Group Co., Ltd recently organized maintenance checks on CR200J trains, a new member of China's Fuxing bullet trains, to prepare for the upcoming Spring Festival travel rush. (Xinhua/Tang Yi)