main components
基本成分
主要成分
主要组分
主成分
主要组成部件
主要部件
主要品质成分
主重要件
基本要素
main components analysis
the cutting-dimension analysis of the main components
Determination of Major and Minor Components
Major and Minor Components
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