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鸡传染性支气管炎
释义
鸡传染性支气管炎
Encyclopedia
农学
〔禽传染病〕
释
infectious bronchitis
鸡传染性支气管炎
由传染性支气管炎病毒(infectious bronchitis virus, IBV)引起的,以病鸡出现咳嗽、喷嚏和气管啰音等呼吸道症状,以及肾脏肿大、尿酸盐沉积,输卵管发育不全,产蛋鸡的产蛋率和蛋品质下降为特征的急性、高度接触性传染病。
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space environment monitoring
space environment monitoring network
space environment near the earth
space environment prediction
space environment simulation and flight training simulation technology
space evolution of urban business arrangement
space-exchange operator
space exchange potential
space exploration
space exploration load
space exploration of the Earth
space exploration of the solar system
space explorations of minor bodies in the solar system
space exposure satellite
space fabric weaving
space figure
space-filling curve
space-filling design
space filling factor
space-filling function
space filling model
space-filling model
space-filling polyhedron
space filter
space-fixed coordinate system
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