duplex telephony [電子、通信與自動控制技術(shù)]雙工電話duplex taper [機械工程]雙重收縮齒duplex tandem compressor [機械工程]雙并雙串壓氣機duplex system [通信] 雙工系統(tǒng)；[計] 雙重系統(tǒng)duplex switchboard [電子、通信與自動控制技術(shù)]雙工配電盤duplex steam piston pump [經(jīng)濟學]雙缸蒸汽活塞泵duplex stainless steel 雙相不銹鋼；二聯(lián)不銹鋼duplex spread blade method [機械工程]雙重雙面法duplex spread blade [機械工程]雙重雙面刀齒duplex roller chain [機械工程]雙排滾子鏈duplex reciprocating compressor [經(jīng)濟學]雙列往復壓縮機duplex radio telephone set [電子、通信與自動控制技術(shù)]雙工無線電話機duplex prints [紡織科學技術(shù)]雙面印花duplex offset blotting paper [材料科學]雙層膠版吸墨紙duplex lap winding [動力與電氣工程]雙疊繞組[土木建筑工程]雙疊繞組duplex injector [交通運輸工程]復式噴射器duplex inject [機械工程]雙注水器duplex house duplex grey board [材料科學]灰底涂布白板紙duplex feeding 雙端饋電，雙路饋電