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单词 ring spot
释义

ring spot


ring′ spot`



n. any of various viral or fungal plant diseases characterized by concentric rings of discoloration or necrosis on the leaves. [1905–10]

ring spot


ring spot

[′riŋ ‚spät] (plant pathology) Any of various virus and fungus diseases of plants characterized by the appearance of a discolored, annular lesion.
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