湖泊分类：构造湖、火山口湖、冲积残留湖、堰塞湖、冰川湖、喀斯特湖、风成湖、陨石撞击湖和人工湖。
Types of lakes: tectonic lake, crater lake, fluvial lake, dammed lake, glacier lake, karst lake, Aeolian lake, impact crater lake and artificial lake.
国内外大量的文献资料和作者的野外现场调查表明，滑坡堵江成坝形成堰塞湖在山区一带广泛发育。
A number of internal and external literatures and of in-situ investigation of indicate that landslide DAMS and dammed lakes distribute widely in mountainous zones.
小型过水建筑物的堰型，因各种原因需要，可分段设计成两种或两种以上的混合堰型。
For different kinds of needs, the weir of small over-flow structure can be designed as the composite weir with two or more types.
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