斜面越陡，火爬得越快。
复斜屋顶在四个面上都各有两个斜面，一个较浅的上部斜面和一个较陡的下部斜面。
The mansard roof has two slopes on all four sides, a shallower upper part and a steeper lower part.
复斜屋顶在四个面上都各有两个斜面，一个较浅的上部斜面和一个较陡的下部斜面。
The mansard roof has two slopes on all four sides, a shallower upper part and a steeper lower part. See also hammer-beam roof.
复斜屋顶在两侧各有两个斜面，上方的斜面不如下方的陡。
The gambrel roof has two slopes on each of its two sides, the upper Being less steep than the lower.
复斜屋顶在两侧各有两个斜面，上方的斜面不如下方的陡。
The gambrel roof has two slopes on each of its two sides, the upper Being less steep than the lower.
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