所有的细胞都稍小，偶见梭形，染色质不清，核仁突出。
All cells were generally smaller and occasionally spindled, the chromatin detail was attenuated, and nucleoli were more prominent.
在椭形胚期，宿存助细胞核内的染色质及核仁消失，有细胞质侵入核内。
At ellipsoidal embryo stage, the chromatin and nucleoli disappear and some cytoplasm enters the nucleus.
出现可染小体巨噬细胞，未见明显核仁或不规则核形。
Tingible body macrophages are present. No prominent nucleoli or irregular nuclear profiles are appreciated.
出现可染小体巨噬细胞，未见明显核仁或不规则核形。
Tingible body macrophages are present. No prominent nucleoli or irregular nuclear profiles are appreciated.
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