Checking the way the power transmission line pole is fixed.
检查沿途的输电线路。
There are 2 operation modes for DC transmission system:single pole operation and double-pole operation.
直流输电系统主要有2种运行方式：单极运行方式和双极运行方式。
There are 2 operation modes for DC transmission system:single pole operation and double-pole operation.
直流输电系统主要有2种运行方式：单极运行方式和双极运行方式。
应用推荐