求翻译：由图可知，外墙外保温系统可以分为聚合物粘结砂浆层、保温板、抹面砂浆层。对上述墙体热传导模型做出假定，墙体温度只会沿着墙体厚度方向变化，各结构层的热物理参数在实验中均为常数是什么意思？

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The figure, we can see that external walls outside the keep-warm system can be divided into polymer adhesive layer mortar, Keep warm, wipe the surface layer of mortar. To the above-mentioned wall heat conduction models assumes that the wall will only along the wall temperature in thickness direction

The figure shows, outside the outer wall keeps warm the system to be possible to divide into the polymer caking mortar level, the heat preservation board, plasters the surface the mortar level.Makes the hypothesis to the above wall heat conduction model, the wall temperature only can along the wall

The figure shows that, external wall thermal insulation system can be divided into polymer adhesive layer, insulation Board, surface mortar layer. On the wall heat conduction model assumes that wall only along the direction of the wall thickness changes in temperature, thermal physical parameters of

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