economical technical analysis 经济技术分析
economical and technical analysis 经济和技术评价
technical economical analysis 技术经济分析
Therefore, technical renovation was carried out for solving these problems, and option comparison and economical analysis were conducted.
针对此问题进行了技术改造，并进行了方案比较及经济分析。
The analysis of electric project planning includes three aspects: social feasibility, technical feasibility and economical feasibility.
电力规划方案的论证应从社会可行性、技术可行性、和经济可行性三个方面进行分析。
In this paper, the theory and features of cold air distribution system is exposed, and the technical and economical analysis is given about several kinds of cold air distribution system.
阐述了低温送风空调方式的原理和特点，对几种低温送风方案进行了技术经济分析。
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