电气化铁道分区所是牵引供电系统中重要的供电设施。
The section post of electrified railway is the important establishment of the traction power supply system.
在新建高速铁路的过程中，首先要解决的是选线设计和闭塞分区的设计，列车牵引计算是划分自动闭塞分区的基础。
In the progress of constructed high speed railway the design of choosing lines and the design of automatic block section are the first and most things.
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