On the base of above study, and with the structural system feature, we put forward economic of structural system analyzing method and model, which is base on value engineering theory.
在以上研究的基础上，并结合结构体系的特点，提出了基于价值工程理论的结构体系经济性分析的方法和模型。
Construction method by steps is used for pre embedded parts of steel structure engineering foundation with easy construction, high accuracy and good quality, and the economic benefit is remarkable.
在钢结构工程基础预埋螺杆的施工中，采用一次就位分步施工法，施工简单、精度高、质量好，经济效益显著。
Engineers have contributed enormously to the progress of human society in material wealth. Engineering science and technology is the method by engineers to promote social and economic development.
工程师为人类物质文明的进步做出了巨大的贡献，工程科技是工程师推动社会经济进步的手段。
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