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prairie
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农学
普列利草原
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prairie
普列利草原
分布于北纬30°~60°、西经89°~107°的广大面积的禾本科草本植物覆盖的平原,是世界上面积最大的禾本科草草地。又称北美大草原(north American prairie)或北美大平原(great plains)。
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uniformly open mapping
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uniformly smooth space
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