本周三早上，连接西南郊区和中心市区的燕房线——北京第一条无人驾驶地铁线路——开始第一次试运行。
The Yanfang line, Beijing's first driverless subway line connecting the city's southwest suburbs to its central urban district started its first pilot run on Wednesday morning.
本周三早上，连接西南郊区和中心市区的燕房线——北京第一条无人驾驶地铁线路——开始第一次试运行。
The Yanfang line, Beijing's first driverless subway line connecting the city's southwest suburbs to its central urban district started its first pilot run on Wednesday morning.
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