基本解釋[機(jī)械工程]對(duì)焊縫詞組短語(yǔ)短語(yǔ)butt -welded side seam [機(jī)]對(duì)接接縫butt-welded seam更多詞組專(zhuān)業(yè)釋義機(jī)械工程對(duì)焊縫