在NPV中,每个囊膜可以包封一个至多个核衣壳,一个囊膜内有多个排列成束核衣壳的,常称为“病毒束”(virus bundle)。用一定浓度的碱液处理病毒,囊膜可以变成气球状而消失,衣壳仍然保留。
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该病毒为多粒包埋型，病毒束大多数包含1 ~ 10个病毒粒子。病毒DNA为环状大分子。
The viruses are polyhedron and the number of nucleocapsids ranges from 1 to 10. The virus DNA is a circular macromolecule.
通过多角体超薄切片的横切面观察，囊膜内包被的核衣壳数变动于1～10之间，只包被1个核衣壳的数目最多，约占总数的80.04％，病毒束在排列图式上存在差异。
Numbers of nucleocapsids observed in an envelope in their cross sections ranged from 1 to 10, and the frequencies at 1 nucleocapsid was significantly higher than the others, almost 80.04% of the all.
运用X射线晶体学，科学家将大量的蛋白质或者病毒转换成了晶体形式，将其置于一束X射线光束之前。
In X-ray crystallography, scientists turn large quantities of a protein or virus into crystal form, placing it in front of an X-ray beam.
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