1)four-wire channel,四线信道2)No.4 normal line,常四线3)three-phase four-wire,三相四线4)Four-line's measurement,四线法5)four coils,四线圈6)Quadruple line coefficient,四线系数
用法例句
Development of 100 kVA enhanced SVG based on three-phase four-wire power system;
100kVA三相四线系统用增强型SVG的研制
Application of FBD-method to real-time current detection in three-phase four-wire system;
FBD法在三相四线制系统电流实时检测中应用
Simulation research on control method of three-phase four-wire active power filters;
