传统能源项目的评价方法主要是项目的技术经济评价，对环境和能源问题很少考虑。
Technical economic assessment method is traditional method used for assessment on energy project, but it has little consideration on environment and energy.
过去在进行技术经济评价或固定资产折旧时，由于缺乏一套具体计算方法，通常只有定性分析，而无定量计算。
Since we are short of a systematic methods in economic apprise of technique and depreciation of fixed assets, we used to do qualitative analysis, never did quantitative analysis.
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