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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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velocity-density relation
velocity determination
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velocity-distance relation
velocity distribution
velocity distribution function
velocity distribution law of ideal gas molecules
velocity ellipse
velocity ellipsoid
velocity field
velocity-flow relation
velocity for erosion and sedimentation control
velocity gain guidance
velocity gradient
velocity-gradient force
velocity-gradient tensor
velocity hodograph
velocity in free space
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velocity matching
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velocity measurement quantity
velocity modulation
velocity of detonation
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