负染就是用重金属盐（如磷钨酸、醋酸双氧铀）对铺展在载网上的样品进行染色；吸去染料，样品干燥后，样品凹陷处铺了一薄层重金属盐，而凸出的地方则没有染料沉积，从而出现负染效果。
摘要07 关键词： 鸭瘟病毒；鸭胚成纤维细胞；纯化；负染[gap=1270]Key words: duck plague virus;duck embryo fibroblasts;purification;negative staining
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负染色法 negative stain ; [生物] background stain ; negative staining technique
负染法 negative staining
负染色技术 negative staining ; nagtive stain technique ; negative staining technique
负染技术 negative staining
墨汁负染色法 India-inknegativestain
污染负荷 pollution load ; pollutingload ; pollutional load
背景[负]染色法 background staining
刚果红负染 Congo red negative staining
负染色电镜 negative-staining tem
透射电镜下，经负染后，在深色的背景中间可见浅色细丝状。
Tint fine thread could be found in dark background after negative staining observed by TEM.
最后，采用负染电镜观察方法得到了该复合体的二维平均结构。
At last, the structure of SNARE core complex was determined using two-dimensional average method by electronic microscopy.
用电镜负染技术观察角蛋白细丝并测定其直径为80～100A。
Under negative staining electron microscopy, the keratin was a filament with a diameter of 80-100A.
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