斜折线屋顶
复折式屋顶

[ noun ]
a gable roof with two slopes on each side and the lower slope being steeper
<noun.artifact>

Gambrel \Gam"brel\, n. [OF. gambe, jambe leg, F. jambe. Cf.
{Cambrel}, {Chambrel}, and see {Gambol}. n.]
1. The hind leg of a horse.

2. A stick crooked like a horse's hind leg; -- used by
butchers in suspending slaughtered animals.

{Gambrel roof} (Arch.), a curb roof having the same section
in all parts, with a lower steeper slope and an upper and
flatter one, so that each gable is pentagonal in form.