hasd

From 1986 to 2007 , The Three Gorges reservoir area ( Chongqing ) had been to increased the overall ecological risk , but the high ecological risk areas will be more dispersed , and Reservoir downstream areas of ecological risk hasd increased .

1986年至2007年，三峡库区（重庆）生态风险整体上有所增加，但是高风险区域分布更为破碎，库区下游地区生态风险增加明显。

Combination of RNAi with transgenic cloning technology to produce transgenic animals hasd been reported on animal disease models for human medicine or animal anti-disease breeding . To date , there are no reports on the production of either transgenic embryos or transgenic animals with resistance to PRRS .

将RNAi和转基因克隆技术相结合制备转基因动物，已被用作人类疾病的动物模型及动物抗病育种研究；但迄今尚未见到具有抗猪蓝耳病特性的相关转基因动物生产的报道。