| 1. | 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。 |
| 2. | The effects of sewage sludge on forest after fertilization and its potential environmental hazards 污水处理废渣在森林中施用后的肥效及潜在的环境影响 |
| 3. | The ovary wall remains fleshy after fertilization of the ovule except for the development of a thin outer skin 除了薄的外果皮的发育外,子房壁在胚珠受精后仍然保持肉质。 |
| 4. | Proembryo a young plant after fertilization but before differentiation into embryo and suspensor tissue 原胚:从受精卵分裂形成2细胞胚开始至胚芽和胚柄等器官分化之前的胚。 |
| 5. | 55s - 5min after fertilization , most of cortical alveoli discharge in the animal hemisphere , and the residual cortical alveoli will entirely discharge in 15min 皮层小泡分批多次释放,质膜也多次发生重组。卜何对卜n |
| 6. | First we employed c . w . m2r , a fluorescent fabric brightener , to investigate changes of wall of female germ unit before and after fertilization 通过荧光染色技术,我们首先观察了自然受精过程中胚囊内雌性生殖单位细胞壁的变化。 |
| 7. | They differ from conifers and other gymnosperms by having the ovule enclosed within an ovary , which after fertilization develops into a fruit 被子植物不同于针叶植物和其他的裸子植物,被子植物的胚珠由子房所包被,受精后直接发育为果实。 |
| 8. | Testa the hard dry protective covering of a seed , formed from the integuments of the ovule . after fertilization the layers of the integuments fuse and become thickened and pigmented 外种皮:覆盖在种子外部的坚硬干燥的保护层,由胚珠的珠被发育形成。受精作用后珠被各层发生融合并加厚着色。 |
| 9. | After fertilization granulosa cells and oocytes were isolated and continued to be cultured for 48 hours , and made into suspension ; the levels of fsh - r on the the granulose cells shall be immediately measured . results : 1 受精后分离颗粒细胞中文摘要和卵母细胞,将所剥离下的全部颗粒细胞继续培养48 ’ j ’时,制成混悬液,并及时进行颗粒细胞膜上fsh丑含量的测定。 |
| 10. | About 2s after fertilization in 17 , sperms arrive at micropylar tube ; 3s , sperm penetrates into ovum where cytoplasm is sunken ; 5s , the spermaster come into being ; 20s , fertilization stopper appears ; 60s , sperms in micropylar apparatus begin to disaggregate 精子在受精2s到达精孔管, 3s进入卵子, 5s形成精子星光, 20s形成受精塞, 60s后精孔器内精子开始溶解。有多精入卵现象,极少数卵子多精受精。 |