back-flip n.背摔back-flashover 反擊back-flap 百葉窗back-firing 迎面火back-fire relief valve 阻火器back-fire relief device [物理學(xué)]消除逆火裝置back-fire arrester [能源科學(xué)技術(shù)]回火防止器back-fire 回火 逆火back-filling temper [土木建筑工程]回填夯實(shí)機(jī)back-filling 回填充 倒填充back-fill tamper [機(jī)械工程]回填搗塞機(jī)back-fill n.反填充back-fence 鄰居的back-feeding 反哺back-face exposure method [動(dòng)力與電氣工程]反面曝光法back-extraction 反萃back-extract 反萃取back-ender n.追尾事故back-end processing [計(jì)算機(jī)科學(xué)技術(shù)]后端處理back-end network [計(jì)算機(jī)科學(xué)技術(shù)]后端網(wǎng)