焊接阅读英汉对照 1 heat input 热输入 Improvement of HAZ Toughness in High Strength Steels under High Heat Input 采用细小贝氏体改进大线能量高强度钢板的热影响区 (HAZ)韧性 Effect of heat input on structure and mechanical properties of welded joint in a SOOMPa grade RFC steel 热输入对 800MPa 级钢接头组织及性能的影响 Microstructure of large heat input welding steels with low susceptivity to weld cracking 大线能量低 焊接裂纹敏感性钢的显微组织 Development of fire-res