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natural focus
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natural focus
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医学
自然疫源地
释
natural focus
自然疫源地
在自然疫源性疾病传播循环中,能保证动物传染源的生存、保证病原体在动物体内繁殖、播散、循环的具有特定自然条件的地区,也是自然疫源性疾病病原体在一定条件下向周围播散的范围。
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Friedrich Wöhler
Friedrich Ⅱ
friend
friendly giant group
friendly number
friendly pair
friendly relationship
Friendly Treaty between the Korea and the United States
friendly visitors
friend of museum
Friends
friendship
friendship commerce navigation treaty
friendship graph
Friendship Harbor in Mauritania
Friendship Theatre
Friendship’s Garland
friends-of-friends cluster finder algorithm
Friends of Nature
Friends of the Earth International
Friends on the Sea Shore
Frier Bacon and Frier Bonga
Fries
Friesland
F. Riesz
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