双工交换系统

duplex【通信】;duplexing【通信】

duplexing switching system

copy, duplexing

duplexing assembly【通信】

double【科技】;dual【科技】;duplexing【科技】

duplex practice【冶】;duplex process【冶】;duplexing【冶】

duplexing of functional unit【计】

duplexing assembly