The cells of B group crawled outward from the tissue inoculation in 2-3 days and the cells were polygen or rotundity and contacted each other.
B组，2-3天大部分组织块边缘有细胞移行向外长出生长晕，细胞呈多角形、圆形，细胞之间相互连接。
The cells of B group crawled outward from the tissue inoculation in 2-3 days and the cells were polygen or rotundity and contacted each other.
B组，2-3天大部分组织块边缘有细胞移行向外长出生长晕，细胞呈多角形、圆形，细胞之间相互连接。
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