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平原
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平原
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理学
平原
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平原
绝对高度低于200米、相对高度小于50米的平缓陆地。
理学
平原
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平原
起伏极小、比较宽广平整的,较相邻的山地、丘陵、台地等地貌类型低的地貌形态。一般平均坡度小于7°,最高点一般在边缘,且一般没有坡度大于10°、高差小于30米的坡坎形态(也有坡度在5°以下,起伏高差一般不超过50米)。
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