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.
分析了正多角形渐开线的几何特性，指出角数为偶数的正多角形渐开线可以用作涡旋型线；
The geometry features of involute of regular polygon are analyzed. It is indicated that the involute of even regular polygon can be used as the scroll wrap.
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