12月28日，乘客在乘坐武汉地铁2号线列车。当日，我国首条穿越长江的地铁——武汉地铁二号线一期工程顺利通车试运营。武汉地铁二号线一期工程线路全长27.73公里，沿线设有21个车站，设计时速为80公里。全程旅行时速约36公里，运行时间约50分钟。地铁穿越长江江底仅需3分钟。通车试运营期间，地铁列车平均6分钟开行一趟。新华社记者 肖艺九 摄 On December 28,,Passengers on the wuhan subway line no. 2.On that day,China's first the subway across the Yangtze river, wuhan subway a test operation phase of the smooth traffic.Wuhan subway first phase line (27.73 km),Along with 21 at the station,Design for 80 kilometers per hour.The trip is about 36 kilometers per hour,Run time about 50 minutes.The subway crossing Yangtze river lab only 3 minutes.Open to traffic during the trial operation,Subway trains 6 minutes on average operation.The xinhua news agency reporters XiaoYi nine perturbation