duty-ratio 佔(zhàn)空比duty-paid adj.已完稅的duty-orientation 任務(wù)導(dǎo)曏duty-free storage [經(jīng)濟(jì)學(xué)]免稅倉(cāng)庫(kù)duty-free shop 免稅商店duty-free import [經(jīng)濟(jì)學(xué)]免稅進(jìn)口duty-free goods 免稅商品 免稅品duty-free articles [經(jīng)濟(jì)學(xué)]免稅物品duty-free allowance 免稅定額duty-free admission [經(jīng)濟(jì)學(xué)]免稅進(jìn)入duty-free adj.免稅的adv.免稅地duty-cycle rating 反複使用定額duty-cycle loss [電子、通信與自動(dòng)控制技術(shù)]佔(zhàn)空比丟失duty-cycle correction [計(jì)算機(jī)科學(xué)技術(shù)]佔(zhàn)空比調(diào)節(jié)duty-cycle 頻寬比duty-bound adj.義不容辤的duty-appointment 職務(wù)聘任duty route analyst [交通運(yùn)輸工程]值班導(dǎo)航分析員duty roster 值勤表；輪值表；輪職表duty receipt 納稅收據(jù)