Traction power supply system as a subsystem of the railway operating system should be a highly reliable system.

牵引供电系统作为铁路运行系统的一个子系统，必须是一个高可靠的系统。

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Traction power supply system as a subsystem of the railway operating system should be a highly reliable system.

牵引供电系统作为铁路运行系统的一个子系统，必须是一个高可靠的系统。

youdao