duplexed[计] 双套duplexn.双层公寓；联式房屋adj.双倍的；复式的；[计] 双方的duplex simultaneous two way operation双工同时双向操作duplex metal simultaneous electrolysis双金属电解duplex configuration of bus protection母线保护双重化duplex multiple-environment real time双工多种环境实时duplex simultaneous two-way operation双工同时双向操作duplex acting steam-driven reciprocating pump双作用蒸汽往复泵duplex tandem steam-driven reciprocating compressor双列串联蒸汽驱动式往复压缩机duplex four-cornered steam-driven reciprocating compressor双列四缸对置式蒸汽驱动往复压缩机