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| 干旱形态结构; 干旱地貌结构 (指荒漠、半荒漠和干草原由于风蚀、水蚀、风化等作用所形成的地貌类型。高原、山前地带和山地多为剥蚀地貌；低地和平地多为沙丘、沙垄、干盐湖、劣地、雅丹等地貌) | |||
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