Elevated Bridge

elevated line

existing elevated bridge

interchange at the west side of elevated bridge

Metro elevated line

Urban Elevated Bridge

aerial pipe line bridge

Bridge line

Double line-line voltage control

line-line extreme distance

line-line topological relation in traffic network

Main-line Bridge

multi-line bridge

on-line line loss

Pipe Line Bridge

loss-free line (=lossless line =lossless transmission line)

SDSL Single-Line Digital Subscriber Line，Single-Line DSL

10-line to 4-line BCD encoder

A line used as both sterile and maintaining line