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2010年12月30日,我国自主创新的基于通信的列车自动控制系统(CBTC)首次在北京地铁亦庄线正式投入载客试运营
On December 30, 2010, China’s independent innovation based on communication train automatic control system (CBTC) for the first time in Beijing Yizhuang Line officially put into passenger trial operation