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哺乳纲(Mammalia)有蹄目(Ungulata)偶蹄亚目(Artiodactyla)洞角反刍科(Bovidae)牛亚科(Bovinae)中家牛属(Bos)、牦牛属(Poephagus)、水牛属(Bubalus)、亚洲野牛属(Bibos)、美洲野牛属(Bison)和非洲野牛属(Syncerus)的总称。大型草食性反刍家畜。
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fixed-point index
fixed-point induction
fixed point iteration method
fixed-point iteration method
fixed point map
fixed point method
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fixed-point method of Leray and Schauder
fixed-point node
fixed-point notation
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fixed-point of a mapping
fixed point of discontinuity
fixed-point operation
fixed-point principle
fixed-point property
fixed-point set
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fixed pollution source
fixed polynomial
fixed population model'
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