This move has solved the structural contradiction of billet sizes, improved the technical and economic indicators and increased the productivity of section mill train.

解决了坯料结构性矛盾，改善了各项技术经济指标，提高了型材机组的创效增效能力。

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Through research and case study, this paper will give some new insights on the preparation of technical and economic indicators of installation project and analysis of project cost.

希望通过研究和实例分析，对安装工程技术经济指标的编制、安装工程造价分析提出一些新的见解。

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It can evaluation the drainage gas technical which is screening of possible and have a number of economic indicators.

可对技术筛选可行的、具有多项经济指标的各个排水采气工艺候选方案进行技术经济综合评价。

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