基本解釋[化學(xué)]弧之觸發(fā)英漢例句雙語例句Before striking an arc, the welder frequently taps the end of the electrode on the ground to break away flux at the tip.在引人注目的一個弧形，水龍頭的銲工經(jīng)常年底電極地麪上打破通量的小費。striking of an arc更多例句專業(yè)釋義化學(xué)弧之觸發(fā)