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专栏与题名期页专栏与题名期页·研究探讨·5000m’拱顶罐气吹倒装对接胀模法施工一2（16）焊接结构的脆性断裂失效与防治—…………·lO）双连焊钢管在我国长输管道建设中的应用一2（19）药芯焊丝焊缝金属强度的回归与分析………l（6）雁形板用于多层工业厂房—…………………
Column and title page column column and title page · Study and discussion · 5000m ’dome tank gas blowing flip docking die mold construction a 2 (16) brittle fracture failure and prevention of welded structures - ............ · lO) double Welded steel pipe in China’s long-distance pipeline construction of a 2 (19) Cored Wire Weld metal strength regression and analysis ......... l (6) wild goose-shaped plate for multi-storey industrial plant - ............... ...