back facade 背面back fabric 背面加重織物back extraction method [化學(xué)]逆萃取法back extraction 反萃?。环摧?；反提取back etching [電子、通信與自動控制技術(shù)]背腐蝕back entrance back ends back end processor 后端處理機(jī)back end lan [經(jīng)濟(jì)學(xué)]后端局域網(wǎng)back end generator language [計(jì)算機(jī)科學(xué)技術(shù)]后端產(chǎn)生器語言back end back flush [經(jīng)濟(jì)學(xué)]末端倒扣帳管制back end 后端back emf 反電動勢back electromotive force constant 反電動勢常數(shù)back electromotive force [電磁] 逆電動勢 [電磁] 反電動勢back eddy [交通運(yùn)輸工程]同渦船尾漩渦伴流back echo [電子] 尾瓣回波 后瓣回波back duty 補(bǔ)繳稅款back drop 交流哼聲，干擾聲；背景，干擾back drive shaft bushing [交通運(yùn)輸工程]后主動軸襯套