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榆树枯萎病
释义
榆树枯萎病
Encyclopedia
农学
森林病害
释
dutch elm disease
榆树枯萎病
由病原真菌引起榆树萎蔫、枯死的病害。是最具毁灭性的树木病害之一。又称榆荷兰病。
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convex closure of a saddle function
convex closure of a saddle-function
convex closure of saddle function
convex combination
convex-compact mapping
convex-complex space
convex-concave
convex concave function
convex-concave function
convex-concave mapping
convex cone
convex constraint condition
convex cooperative game
convex core
convex curve
convex decomposition
convex domain
convex down
convex down curve
convex duality
convex equivalence relation
convex extension
convex figure
convex figure of constant width
convex function
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