two-step (n.) two-state-variable [計算機科學技術(shù)]雙態(tài)變數(shù)two-state variable [機械工程]二態(tài)變數(shù)[計算機科學技術(shù)]雙態(tài)變數(shù)two-start worm [動力與電氣工程]雙頭螺桿[機械工程]雙頭螺桿two-star （服務或賓館）兩星的。two-stands 雙機架two-stage wheel [材料科學]兩段磨輪[冶金工程技術(shù)]兩段磨輪two-stage valve 兩級閥two-stage turbocharging [航空、航天科學技術(shù)]二級增壓two-stage stationary air compressor [能源科學技術(shù)]二級固定式空氣壓縮機[經(jīng)濟學]二級固定式空氣壓縮機two-stage pump [機械工程]兩級泵[經(jīng)濟學]雙級泵two-stage planetary gearing [材料科學]兩級行星齒輪傳動two-stage operation [毉葯科學]二期手術(shù)two-stage control [電子、通信與自動控制技術(shù)]二級控制雙級控制two-stage compressor 兩級壓縮機two-stage cementing [能源科學技術(shù)]雙級注水泥[地球科學]雙級固井two-stage axial-flow fan [經(jīng)濟學]兩級軸流式風機two-stage amplifier 兩級放大器two-stage adj. 兩級的two-stack blowout-preventer system [能源科學技術(shù)]雙組防噴器裝置