超高速直流线路保护  ultra-high-speed protection for DC transmission line

直流线路横差保护  DC line transversal differential protection

超高速交流线路保护  ultra-high-speed protection for AC transmission line

交流线路保护  AC line protection

铁路线路保护监控装置  integrated protection and control device for railway substation

3路输出直流-直流变换器  three output DC-DC converter

500kV直流线路  500 kV DC transmission line; 500 kV transmission line

660kV直流线路  660 kV transmission line

800kV特高压直流线路  800 kV UHVDC transmission line

800kV直流线路  800 kV UHV DC transmission line; 800 kV DC transmission line; 800 kV DC transmission lines

极导线垂直排列直流线路  vertical DC lines

两回800kV直流线路  two-circuit 800 kV DC transmission lines

平行架设交/直流线路  AC transmission line parallelly erected with DC transmission lines

特高压交直流线路  UHV AC and DC transmission lines

特高压直流线路  UHVDC line; UHV DC line; UHV DC transmission line

同塔双回高压直流线路  double-circuit HVDC overhead transmission lines

无刷直流直线电动机  Brushless DC Linear Motor

永磁无刷直流直线电动机  permanent magnet brushless DC linear motor

永磁无刷直流直线电机  permanent magnet brushless direct current linear motor