为：原始卵泡（primordial follicles），含有一个初级卵母细胞，周围包绕单层扁平的前颗粒细胞；初级卵泡（primary follicles），含有一个卵母细胞，周围包绕单层柱状颗粒细胞：次级卵泡（secondary follicles），含有一个卵母细胞，周围包绕两层或以上柱状颗...
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The primary follicles and secondary follicles of Rex rabbits appeared during the 18th to 24th day of embryo development.
力克斯兔的初级毛囊、次级毛囊于胚胎的18 ~ 24天先后出现。
All primary follicles matured at the age of 135 days in the foetal period and secondary follicles developed until 6 months after birth.
初级毛囊的发育在胎儿期135日龄时已完成，而次级毛囊发育直至出生后6月龄。
These anatomical divisions also represent functional compartments in that the cortex, with its primary and secondary lymphoid follicles, is composed largely of B cells.
这些解剖部分也代表了皮质功能区，它的初级和刺激淋巴结主要由B细胞组成。
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