1.In the first phase, the oogonium has little cytoplasm and bigger nuclear-cytoplasmic ratio.

1.第1时相，卵原质较少，核质比较大。

2.The proliferative phase of the oogonium was found in the gestational age between 41d and 84d.

2.卵原增殖期41-84天胎龄间，而增殖高峰在41-48天间出现。

3.A group of cells at the tip of the oogonium in certain green algae (Chlorophyta), such as the stonewort Chara and the mermaid's cup (Acetabularia).

3.2某些类（门）中颈卵器顶部的一组，例如轮属和伞属的冠。