Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/3360bcffb325d00fa576d97348ab5f8d.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58 striking of an arc是什么意思，striking of an arc的翻译，striking of an arc音标、读音、用法和例句_歐米惠必应词典
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，水龍頭的銲工經常年底電極地麪上打破通量的小費。