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灌丛沙堆
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灌丛沙堆
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农学
干热河谷
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nebkha
灌丛沙堆
风沙流遇到植物丛阻拦,沙物质在植物丛周围堆积而成的一种风积地貌,广泛分布在干旱、半干旱及半湿润沙地和部分沙质海岸。又称灌丛沙包或灌丛沙丘。
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Universal Postal Congress
universal postal service
Universal Postal Union
universal predicate
universal principal bundle
universal problem
universal product
universal product code
universal production line
universal profinite group
universal projective cone
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universal quantification elimination
universal quantification introduction
universal quantifier
universal quantor
universal quantum cloning
universal quantum computer
universal quantum gate
universal quantum gates
universal quasi-chemical activity-coefficient
universal recursive function
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