| 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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