基本解釋n.預(yù)選流同根派生 preflow相關(guān)詞英漢例句The power source has such performances as lift starting, DC arc welding, pulse welding, gas preflow, gas postflow, etc. 該電源具有提升引弧 、直流焊、脈沖焊、提前送氣和延時(shí)斷氣等功能。preflow更多例句