求翻译：铁路运输：穿境而过的宁铜线与京沪线、宣杭线、皖赣线连接，与全国铁路网相连，已开工建设并于2012年建成的长三角城际客运线经过马鞍山，届时到上海仅需1个半小时、到北京仅需4个小时。是什么意思？

Rail transport: through Habitat Ning copper connection with the Beijing-Shanghai line, the line Xuanhang, Anhui-Jiangxi line with the national railway network, has started construction and was built in 2012, the Yangtze River Delta inter-city passenger line through Ma On Shan, will only one and a ha

Rail transport: through habitat, and from the Ning copper wire and Beijing-Shanghai line, sun, spring yingtan-xiamen line connection, and the national railway network, and has been under construction in 2012 and built in 3 long inter-city passenger rail line after Ma On Shan, at which time to Shangh

正在翻译，请等待...

Railway transport: put the border than they would have been rather copper wire line, the xuanhang railway from Beijing to Shanghai, Anhui-Jiangxi line connections, and connected to the national railway network, has started construction and completion in 2012 of Yangtze River Delta inter-city passeng

Railway transportation: But puts on the boundary rather the copper wire and the Beijing to Shanghai line, proclaim Hang Xian, the Anhui Jianxi line connection, is connected with the national railway network, began the construction and the long triangle city border passenger transportation line which