high-voltage main equipment
main equipment
主要设备
主设备
主选设备
主体设备
主用设备
主机设备
一次设备
本体
main equipment collocation
main equipment configuration
Modify imported old equipment by domestic equipment
1 000 kV main transformer
10CrMo910 main steam pipeline
220 kV main transformer
220 kV main transformer protection
Ⅱcross-section main girder
3 main lines of time-cost-innovation
330 kV main transformer
500 kV main electrical connections
500 kV main power grid network
500 kV main ring network