duplexern.双工机(天线共用器；天线转换开关)duplexn.双层公寓；联式房屋adj.双倍的；复式的；[计] 双方的duplex doubleacting pump复式双动水泵duplex horizontal miller复式卧铣床duplex pyramid algorithm双向塔式算法duplex mechanical stoker双机力加煤机duplex steam pistom pump双缸蒸汽往复泵duplex communication line[计] 双工通信线路duplex reciprocating pump双缸往复泵duplex horizontal sprayer双管卧式喷雾器duplex feedback amplifier双重反馈放大器duplex pressure condenser双背压凝汽器