butt-welded side seam是什么意思，butt-welded side seam的翻译，butt-welded side seam音标、读音、用法和例句

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butt-welded side seam是什么意思，butt-welded side seam的翻译，butt-welded side seam音标、读音、用法和例句_菜篮子兴趣思朗文词典