As a major component part of the retaining structure, the external wall of building is the important part of energy saving.
建筑外墙作为建筑围护结构的主要组成部分，是节能的重点部位。
As a major component part of the retaining structure, the external wall of building is the important part of energy saving.
建筑外墙作为建筑围护结构的主要组成部分，是节能的重点部位。
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