黄晕
- 网络yùn;hàng;halo
黄晕 黄晕
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[faint;dim] 昏黄不明亮。晕,太阳或月亮周围的光圈,也指光亮周围的影子
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病斑近圆形，周围有黄晕，但不象柑桔溃疡病那样有火山口开裂。
The typical symptom appeared as approximately circular spot with a yellow halo , without crateriform symptom as that of citrus canker .
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区内自上而下明显增强的硅化和扩大的黄铁绢英岩化晕圈，昭示了隐伏的中酸性岩株或次火山岩体的存在。
Increased obviously from top to bottom of the silicification and broadened the pyrite-sericite-quartz alteration halo in this ore area shows the existence of hidden neutral-acid stock and subvolcanic rock mass .