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当研究一种可能未经描述的,汁液传染的病毒时,开始对其提纯液作更广泛的研究以前,需要了解这种病毒的一些基本性质,
Before researching a potentially unspecified, juice-borne virus and starting a more extensive study of its purifying fluids, some basic properties of the virus need to be known,