Warning: file_put_contents(/www/wwwroot/ppbbu/28094.com/cache/e0dde3c567b481fad61a0f37f382decb.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/28094.com/index.php on line 55 arc welding英英字典_arc welding剑桥英语解释_arc welding柯林斯英文解释_贰靶汉英词典
1. N a technique in which metal is welded by heat generated by an electric arc struck between two electrodes or between one electrode and the metal workpiece 弧銲