Thesteelpipelineengineeringprocessisnormallydividedintothreephases:(1)Conceptualengineering;(2)Pre-engineering;(3)Detailengineering.Theprimaryobjectivesoftheconceptualengineeringphaseistoinvestigatetechnicalfeasibility,identifyconstraintsthatneedfurtherin (共 2658 字) [阅读本文] >>