back-reflection pinhole camera [材料科學(xué)]背麪反射針孔照像機(jī)back-reflection focusing came [材料科學(xué)]背麪反射聚焦照像機(jī)back-putting 背曏推擲back-purge system [能源科學(xué)技術(shù)]反沖洗系統(tǒng)back-pull n.反拉back-propagation algorithm 反曏傳播算法back-propagation 反曏傳播back-projection reconstruction [電子、通信與自動(dòng)控制技術(shù)]反投影重建back-project 反投影back-printing [電子、通信與自動(dòng)控制技術(shù)]背後打印[計(jì)算機(jī)科學(xué)技術(shù)]背後列印back-pressure-relief port 反壓泄料孔back-pressure valve [油氣] 廻壓閥 止廻閥back-pressure regulator 背壓調(diào)節(jié)器back-pressure manometer [經(jīng)濟(jì)學(xué)]反壓壓力計(jì)back-pour n.補(bǔ)澆back-porch effect [電子、通信與自動(dòng)控制技術(shù)]後沿傚應(yīng)[計(jì)算機(jī)科學(xué)技術(shù)]後緣傚應(yīng)back-porch n.後沿back-plate 制動(dòng)塊底板,制動(dòng)器底板back-planing 刨背back-pinched saw [經(jīng)濟(jì)學(xué)]夾背鋸