The formula of calculation of support system resistance and yieldability under condition of medium stable roof is derived and proved through eguivalent model testing.

推导出了中等稳定顶板条件下计算支护系统所需阻力和可缩量的公式，并进行了相应的模拟实验研究。

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This article describes drainage design principle for planted roof, and puts forward that increasing drainage gradient of both roof and growing medium layer could speed up water discharge.

叙述了种植屋面的排水设计原则，提出可通过加大屋面排水坡度和种植介质表面排水坡度等措施，达到快速排放屋面积水的目的。

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The house is clad in a medium gray brick with dark gray slate roof tiles.

住宅覆盖的是中灰色砖块，屋顶铺设的是深灰色瓷砖。

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