基本解釋[經(jīng)濟(jì)學(xué)]備用輔機[動力與電氣工程]備用輔機英漢例句雙語例句Powered back-up roll is an auxiliary device on veneer lathe.動力壓輥是單板鏇切機上一個輔助裝置。back-up auxiliary更多例句專業(yè)釋義經(jīng)濟(jì)學(xué)備用輔機動力與電氣工程備用輔機