由南车集团四方机车车辆股份有限公司研制的新型地铁车辆,近日完成了一系列调试,在经过5000km的运行试验后,将正式在北京地铁1号线投入运营。北京地铁1号线是中国最早的地铁线路,目前在线路上运行的部分车辆陈旧、档次低。新型地铁车辆的投入运营,将极大改善其运行条件,同时为 The new subway vehicles, developed by CSR Locomotive and Rollei Co., Ltd., have recently completed a series of commissioning tests and will be officially put into operation on Line 1 of Beijing Subway after 5,000km running test. Beijing Metro Line 1 is the earliest subway line in China, and some of the vehicles currently running on the line are outdated and of low grade. The operation of new subway vehicles will greatly improve their operating conditions, at the same time