plain butt-weld是什么意思，plain butt-weld的翻译，plain butt-weld音标、读音、用法和例句

Warning: file_put_contents(): Only 0 of 4768 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/cp667.com/index.php on line 55
plain butt-weld是什么意思，plain butt-weld的翻译，plain butt-weld音标、读音、用法和例句_淳朴汉英词典

plain butt-weld

基本解释

专业释义

机械工程