米轨、寸轨、准轨“三轨并存”——这座博物馆讲述百年云南铁路史
View of Yunnan Railway Museum in Kunming

这是5月14日在云南铁路博物馆拍摄的不同钢轨。云南铁路博物馆位于昆明市北京路昆明北火车站内，是一座兼具“车站上的博物馆”与“博物馆中的车站”双重属性的专题展馆。该馆以百年云南铁路发展史为主线，系统呈现了从米轨、寸轨到准轨，从蒸汽机车到高铁的跨越式演进历程。[新华社记者 陈欣波 摄]

Samples of different railway tracks are pictured at Yunnan Railway Museum in Kunming, southwest China's Yunnan Province, May 14, 2025. Housed in Kunming North Railway Station, the Yunnan Railway Museum takes the century-long development history of Yunnan railway as the leading story line to narrate the frog-leaping evolution railway gauge standards from meter gauge to inch gauge, and standard gauge, as well as railway technologies from steam locomotives to high-speed rails. (Xinhua/Chen Xinbo)