卵器

Most gymnosperms retain archegonia except for the most advanced genera Gnetum and Welwitschia.

除了买麻藤属和百岁兰属以外大多数裸子植物还保留有颈卵器。

Great structural and morphological changes in the neck cell and the central cell took place during t he archegonial development.

在颈卵器的发育过程中，颈细胞和中央细胞的形态及结构都发生了较大的变化。

The archegonial initials could be distinguished from the perip heral cells at the micropyle end of the female gametophyte before the completion of the wall formation where the cell wall had reached the center of the gametop h yte.

雌配子体中游离核之间细胞壁还未完全形成时，在其近珠孔端表面可看到颈卵器母细胞发生。

Methods According to the ecological characters of, Aedes albopictus ,and the structure of CDC ovitrap and housefly trap,we invented a Mosqovitrap in which the mosquito would be attracted to oviposit,and would be caught.

方法根据白纹伊蚊的生态特点和美国疾病预防与控制中心诱卵器监测方法，结合捕蝇笼结构特点，设计具有引诱伊蚊产卵的器械，并在实验室及现场进行验证。

Methods According to the ecological characters of Aedes albopictus , and the structure of CDC ovitrap and housefly trap, we invented a Mosq ovitrap in which the mosquito would be attracted to oviposit, and would be caught.

根据白纹伊蚊的生态特点和美国疾病预防与控制中心诱卵器监测方法，结合捕蝇笼结构特点，设计具有引诱伊蚊产卵的器械，并在实验室及现场进行验证。

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。

Of mosses having the archegonia on short lateral branches.

在短侧枝上有颈卵器。

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。

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。在传粉与受精的间隔期间，他们毁坏了雌球花。

The initiati on and development of archegonia in Gingko,compared with those of cycads, w ere liked to be more primitive at the evolutional level.

银杏雌配子体及颈卵器的发生与发育，和苏铁类植物比较，在演化程度上可能更为原始。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。