dual system 雙重系統(tǒng)，[自] 雙系統(tǒng)；[自] 對偶系統(tǒng)dual switchboard [電子、通信與自動(dòng)控制技術(shù)]復(fù)式配電盤[動(dòng)力與電氣工程]復(fù)式配電盤dual support system [政治學(xué)]雙重資助辦法dual string tubing hanger [經(jīng)濟(jì)學(xué)]雙管懸掛器dual stator-winding [電子、通信與自動(dòng)控制技術(shù)]定子雙繞組dual state continuously variable transmission [交通運(yùn)輸工程]雙狀態(tài)cvtdual stack 雙協(xié)議棧dual space [數(shù)] 對偶空間dual signal control [交通運(yùn)輸工程]雙重信號(hào)控制dual shale shaker [能源科學(xué)技術(shù)]雙振動(dòng)篩dual sense amplifier [經(jīng)濟(jì)學(xué)]雙重讀數(shù)放大器dual savings plan [經(jīng)濟(jì)學(xué)]雙重儲(chǔ)金計(jì)劃dual role 雙重角色dual reheat cycle [土木建筑工程]兩次再熱循環(huán)dual recognition theory [醫(yī)藥科學(xué)]雙受體識(shí)別學(xué)說dual recognition [經(jīng)濟(jì)學(xué)]雙重承認(rèn)[生物學(xué)]雙重識(shí)別[醫(yī)藥科學(xué)]雙識(shí)別dual pwm excitation frequency converter [電子、通信與自動(dòng)控制技術(shù)]雙pwm勵(lì)磁變頻器dual purpose test 雙重目的抽查dual purpose 雙重目的；雙用途的dual pulse-repetition frequency [計(jì)算機(jī)科學(xué)技術(shù)]雙重頻