covering egg是什么意思 covering egg怎么读
covering egg的用法和样例
- Follicular cells which pile up as a tougue in the granular layer come to insert into egg membrane, and make the zona rediata undulate.This kind is called inlayed-folicle.
颗粒层滤泡细胞互相堆积成舌状镶嵌入卵膜，并使放射带凹凸不平，称为镶嵌型滤泡。
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