both sides weldedboth sides weldingdouble weldeddouble weldingdouble-sided weldingdoubleweldingweld from both sideswelding by both sideswelding from both sides双面: two-sided; double-edged; dou ...焊: weld; solder双面焊的: double-welded双面焊缝: double welded joint双面焊接: both sides welding; double side welding下载手机词典可随时随地查词查翻译