Warning: file_put_contents(/www/wwwroot/ppbbu/62383.com/cache/a2c57810e13780b91c9b7a483d8872c1.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/62383.com/index.php on line 55 spot-welding英英字典_spot-welding剑桥英语解释_spot-welding柯林斯英文解释_流逝汉英词典
1. V to join (two pieces of metal, esp in the form of wire or sheet) by one or more small circular welds by means of heat, usually electrically generated, and pressure 點銲(兩根金屬絲或兩塊金屬板)