从而表明，该L X分离株为IBDV超强毒，具有超强毒株的致病特点。
These showed that the isolate LX was a very virulent IBDV strain.
并就新小种类型对目前主要生产品种和抗源的致病特点进行了研究，为品种布局和抗源选用提供了具体目标。
The pathogenic characteristics of the main productive varieties and resources are studied. This report also presents concrete objectives for variety deployment and selection of resistance resources.
本实验在参考国内外造模方法以及联系中医情志致病特点的基础上，采用反复限制制动的方法建立心理应激动物模型。
The model rats with repeated restraint psychological stress had been established on the base of characteristics of emotional diseases and the methods adopted by the researchers outside or inside.
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