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日前北京地铁总公司组织铁道部及北京地铁等部门专家,通过了对我国第一套用于城市轨道交通安全保障的DT—9300型无绝缘轨道电路的评审。
Recently, Beijing Subway Corporation organized the Ministry of Railways and the Beijing Subway and other departments and experts, passed the first set of China’s urban rail transit security for the DT-9300 non-insulated track circuit review.