城市电网改造
urban power network reconstruction
城市电力网规划
urban power network planning
城市电力网
urban network
city electric power network
晨光集团的电力管理
chenguang group power management
车载电源管理器
Vehicle power management unit
车辆电压调节器
voltage regulator for vehicles
超快激光与光电子学
ultrafast laser and optoelectronics
Ultrafast laser and photoelectronics
超高压电网稳定
EHV power grid sta-bility
超高压电网规划研究
Layout and Research on UHV Power Network
长治电网状况分析
changzhi power network condition analysis
长途自动电话网
automatic telephone trunk network
长途电话管理部门
LDTA Long Distance Telephone Administration