| 单词 | 囊状卵泡 |
| 释义 | 〔proestrus〕The period immediately before estrus in most female mammals, characterized by development of the endometrium and ovarian follicles.发情前期：大多数雌性哺乳动物发情期前准备期，其特点是子宫内膜和囊状卵泡发育〔ovisac〕An egg-containing capsule, such as an ootheca or a Graafian follicle.卵囊：充作贮放卵粒的一个囊状物，如一卵鞘或囊状卵泡 |
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