四卷筒电气差动控制系统
four-drum electrical differential control system
不安全的电气电路
unreliable electrical circuit path
电气电子
Electronics and electricity
电气电子产品
electrical and electronicequipment
电气电子教学学报
Journal of Electrical & Electronic Education
电气电子设备
electrical and electronic equipmen ts
电气-气压法
electro-pneumatic operated valve
3. 电气蓄电池
Electrical storage batteries
3kV电气系统
electric power system of 3 kV
42V电气系统
42V electrical power systems
42V powernet
500kV电气主接线
500 kV main electrical connections
6502SYS电气集中设计软件
6502SYS electric interlocking design software