Workers clean the locomotive of a high-speed train in Shanghai, Jan. 8, 2017. The cleanup uses both automatic and manual efforts that take about 45 minutes for each 400-meter-long train. One group of workers cleans 20 locomotives each night. (Photo: China News Service/Zhang Hengwei)
Automatic cleaning of a high-speed train in Shanghai, Jan. 8, 2017. The cleanup uses both automatic and manual efforts that take about 45 minutes for each 400-meter-long train. One group of workers cleans 20 locomotives each night. (Photo: China News Service/Zhang Hengwei)
Workers clean the locomotive of a high-speed train in Shanghai, Jan. 8, 2017. The cleanup uses both automatic and manual efforts that take about 45 minutes for each 400-meter-long train. One group of workers cleans 20 locomotives each night. (Photo: China News Service/Zhang Hengwei)
Workers clean the locomotive of a high-speed train in Shanghai, Jan. 8, 2017. The cleanup uses both automatic and manual efforts that take about 45 minutes for each 400-meter-long train. One group of workers cleans 20 locomotives each night. (Photo: China News Service/Zhang Hengwei)
Workers clean the locomotive of a high-speed train in Shanghai, Jan. 8, 2017. The cleanup uses both automatic and manual efforts that take about 45 minutes for each 400-meter-long train. One group of workers cleans 20 locomotives each night. (Photo: China News Service/Zhang Hengwei)
Automatic cleaning of a high-speed train in Shanghai, Jan. 8, 2017. The cleanup uses both automatic and manual efforts that take about 45 minutes for each 400-meter-long train. One group of workers cleans 20 locomotives each night. (Photo: China News Service/Zhang Hengwei)
Automatic cleaning of a high-speed train in Shanghai, Jan. 8, 2017. The cleanup uses both automatic and manual efforts that take about 45 minutes for each 400-meter-long train. One group of workers cleans 20 locomotives each night. (Photo: China News Service/Zhang Hengwei)
Automatic cleaning of a high-speed train in Shanghai, Jan. 8, 2017. The cleanup uses both automatic and manual efforts that take about 45 minutes for each 400-meter-long train. One group of workers cleans 20 locomotives each night. (Photo: China News Service/Zhang Hengwei)
A worker cleans the locomotive of a high-speed train in Shanghai, Jan. 8, 2017. The cleanup uses both automatic and manual efforts that take about 45 minutes for each 400-meter-long train. One group of workers cleans 20 locomotives each night. (Photo: China News Service/Zhang Hengwei)
Automatic cleaning of a high-speed train in Shanghai, Jan. 8, 2017. The cleanup uses both automatic and manual efforts that take about 45 minutes for each 400-meter-long train. One group of workers cleans 20 locomotives each night. (Photo: China News Service/Zhang Hengwei)
