高压直流架空线路和地下线路分段的组合也常采用.Combinations of both overhead and under - ground HVDC line segments frequently occur.介绍一种电力机车带电通过相分段的自动转换系统.This paper introduces an automatic conversion system for locomotive pas sing through the ...

“分段的”的英语可以翻译为：[计] sectionalized，[医] sectorial ...