中小径焊管焊缝纵向裂纹的双壁透照检测方法的讨论
중소경한관한봉종향렬문적쌍벽투조검측방법적토론
Discussion on the Dull Walls X-ray Method to Inspect the Weld Crack of Welded Pipe with Small and Medium Path
저자의 최근 논문