Value analysis is an edge tool of decreasing cost in a new product development by a branch of Technical Economy, especially in designing phase. It is applying widely.
价值分析作为技术经济的一个分支，在新产品开发设计阶段被视为降低成本的利器，得到越来越广泛的应用。
By the designing example, this paper summarizes the selecting design temperature analysis, the foundation of select material and work pressure.
通过实例的设计过程，该文阐述了选择设计温度分析、材料选择的基础及工作压力。
The rational strategy for designing the pressure drop is proposed by technical and economic analysis on the pressure drop performances of chemical plant system.
本文通过对化工装置系统压降性能的技术经济分析，得出合理的压降设计策略。
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