文章通过对外墙、屋面、地面和门窗传热系数的计算过程加以阐述，探讨节能计算。

Through expounding the calculation process of the external wall, roofing, floor and door and window heat transmission coefficient, the article investigates the energy-savingc alculation.

youdao

文章通过对外墙、屋面、地面和门窗传热系数的计算过程加以阐述，探讨节能计算。

Through expounding the calculation process of the external wall, roofing, floor and door and window heat transmission coefficient, the article investigates the energy-savingc alculation.

youdao