Many forest tree species have multiple archegonia which, after fertilization produce a number of proembryos.
许多林木树种都有颈卵器, 受精以后便产生许多原胚.
辞典例句
A similar section through the female plant reveals several bottle - shape archegonia , the female reproductory organs.
通过雌株末梢的纵切面所现出的几个瓶 状 的颈卵器, 这就是雌性生殖器官.
辞典例句