区域提纯: zone pruificationzone purificationzone refining
Example Sentences:
1.
Dsmv is proved as the predominating virus - pathogen on aroid plants from zhejiang province and other regions in china . cdna of dsmv rna 3 " end partial sequence and subgenomic rna promoter region of cucumber mosaic virus ( cmv ) rna3 were used as probes for detection of dsmv and cmv respectively . total rna extracted from field samples were used for rna dot - hybridization 用侵染马蹄莲的dsmv3末端序列和黄瓜花叶病毒( cmv )的亚基因组启动子区互补dna序列为标记探针，对自然感病的天南星科植物进行rna斑点杂交，并结合双链rna分析、病毒提纯和形态学观察，对杭州等地16属天南星科植物的81个样品进行了病毒鉴定。
