查询词典 egg apparatus

The other cells of the tetrad undergo degeneration. The mature embryo sac consists of an egg apparatus, a central cell, and 3 antipodal cells. The embryo sac is a monosporic Polygonum type. The zygote develops into a mature embryo going through proembryo, globular, heart, and torpedo stages.

胚囊发育类型为单孢子蓼型胚囊； 2胚的发育经过原胚、球形胚、心形胚和鱼雷胚等阶段发育为成熟胚；胚柄在球形胚时期最发达，但胚柄短小，只由3个扁平细胞组成，之后逐渐退化。

In the mature embryo sac, the synergid filiform apparatus, the polari-ties of the egg and zygote and the two polar nuclei are significant.

在授粉后18-24小时，卵细胞开始受精，在授粉后54-58小时，合子开始分裂，但初生胚乳核则在授粉后32小时已开始分裂。4。

Here the authors examined the egg case silks from the orb web spider, Argiope amoena and Nephila clavata by the automatic amino acid analyzer, SEM, FTIR and electric single-fiber tensile apparatus with the goal of expanding our understanding of the relationship between the structure, mechanical performance and biological function of these unique biomaterials.

作者采用氨基酸自动分析仪、傅立叶转换红外光谱仪、扫描电镜和电子单纤强力仪对悦目金蛛和棒络新妇的卵袋丝进行了物理化学结构表征与力学性能的研究，结果表明两种蜘蛛卵袋均由微米级柱状腺丝、大壶状腺丝、亚微米级或纳米级葡萄状腺丝构成。

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。