首先介绍和分析了既有办公建筑围护结构节能改造的适用技术，主要包括外墙、外窗和屋顶的节能改造技术。

This paper firstly introduces and analyzes the feasible energy saving retrofitting technologies for envelope of existing office buildings, mainly about exterior walls, windows and roofs.

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本文在阅读相关资料后，借助计算机软件的模拟分析，对办公建筑窗户节能有了更深入的了解。

After reading the relevant information, this paper use of computer simulation software to having a more in-depth understanding about energy-saving design of office building window.

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通过对深圳市高层办公建筑进行抽样调查，得到了其建筑能耗的基本状况，并对深圳市该类建筑的节能潜力进行了分析。

This paper presents Shenzhen high rise office building sampling investigation, finds their basic condition in respect of building energy consumption, analyses the potentialities of energy saving.

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