duplexn.双层公寓；联式房屋adj.双倍的；复式的；[计] 双方的duplex ceramic复相陶瓷duplex printer双面打印机duplex adaptor双口接合器duplex balance双方向平衡,双工平衡duplex fitting双通接头duplex network双工网络duplex channel双工通道duplex feeding双重馈电,两路供电duplex Doppler双功能多普苗duplex coupler双联器