在中国满洲里站宽轨场和俄罗斯后贝加尔站间，采用的区间闭塞方式是俄罗斯式单线继电半自动闭塞．它以出站信号机的开放作为列车占用区间的凭证．通过满洲里、后贝加尔两站间的半自动闭塞设备的相互控制，保证两站区间内的一条线路上，同时只能运行一列车．它具有操作简便，设 In China, Manchuria station wide track field and the Russian post-Baikal station interval blocking method is the Russian single-wire relay semi-automatic occlusion. It takes the opening of the outgoing signal as a voucher for the area occupied by the train. Through the mutual control of the semi-automatic blockage equipment between Manchuria and Bekkal stations, one line in the interval between the two stations can be guaranteed and only one train can be operated at the same time. It is easy to operate, set