发育后期的

The layer of gelatinous material that separates the inner and outer cell layers of a coelenterate.

胚盘由哺乳动物受精卵分裂而形成的细胞层。后期分裂为三层，胚胎由此发育

Twenty-six of them wereeach given this drug lmg daily after the first coition during the cycle,and 12 womenused 2 mg for once for postcoital contraception.

所有服药妇女的子宫内膜发育均受不同程度抑制，对在周期早期开始服药者内膜的抑制作用较后期服药者明显。

Its embryo sac matures about 45 d after pollination.

在培养后期，外源激素对胚囊发育的影响很大。

The result of WISH showed that the trascription of hira gene distributed widely in the early stages of embryos development and centralized to head, heart and the end of tail. Hira gene might affect the development of brain and heart. The expression characterization of colored crucian carp Cahira gene in different tissues and different stages of embryogenesis were also investigated by RT-PCR.

胚胎原位杂交显示，Hira基因的转录本在银鲫胚胎早期广泛分布，而在胚胎后期主要集中于头部、心脏及尾芽尖部，说明也对其脑部和心脏的发育有影响。

In the former growth period, the accumulation of various nutrient components was gradually increasing and the declining rate of crude protein content was slow; in the later growth period, the accumulation of all kinds of nutrient components easily being digested was slow until stopped. The best utilization time of Arundinaria argenteostriata was in the period from May to Sept., with the content of crude protein of 13.78%-15.10%; crude fat, 3.77%-8.49%; soluble sugar, 14.57%-18.47% and acid detergent fiber,

在其生长发育前期，各种营养物质积累速度快，粗蛋白含量下降速度缓慢；生长后期，各种容易消化的营养物质积累速度缓慢直到停止。5~9月份为铺地竹的最佳利用时期，在该生长期间其粗蛋白含量在13.78%~15.10%，粗脂肪含量在3.77%~8.49%，可利用糖含量在14.57%~18.47%，酸性洗涤纤维含量在

Study shows that environment evolution and eustatic change of Holocene in this area may be divided into 6 stages:① early stage of early Holocene, 9 100~10 900 aBP,when sea level was low and this area was an oxidizing environment or oxidizing-reducing transition environment;② late stage of early Holocene, 8 000~9 100 aBP, sea-level rising,...

研究表明，本区全新世环境演化分为6个阶段：①早全新世早期，10900~9100aBP，海平面较低，尚未淹没本区，为近岸氧化环境或氧化—还原过渡环境；②早全新世晚期，9100~8000aBP，海水上涨，本区时淹时退，为浅海或潮坪环境，生物钻孔发育；③中全新世主体，8000~4150aBP，海平面快速上升，完全淹没，Fe2+/Fe3+介于0.7395~1.9123之间，为全新世中最高段，表明还原程度强、全球气候变暖；④中全新世后期，4150~2850aBP，海水有所下降，仍为浅海环境，Fe2+/Fe3+较高，多在1.0以上；⑤晚全新世，2850~1310aBP，海平面进一步下降，本区时常暴露，其中2150~1310aBP以还原环境为主，为潮下带，2150~2850aBP以氧化—还原过渡环境为主，为潮间带；⑥1855AD以来，海平面基本稳定，稍有上升，为现代黄河三角洲沉积时期。本区全新世至少存在5期冷热交替的旋回性气候变化。

During embryogenesis, CaM mRNA was expressedstronger in the endosperm cells than in the proembryo cells at earlier stage but it wasreversed at embryo differentiation stage.

胚胎发育早期，钙调素mRNA在胚乳细胞中的表达比原胚中强，而后期则在分化胚中比胚乳细胞中强。

The results of the determinating the activity of the CA in vitro showed that the CA of the water—fed individuals were in activing statics after eclosion. Because of the apperence of the Vg in haemolymph and the deposition of the vitellin in oocytes in the unfed females, it was shown that the CA in such individuals were in activiting statics, too. Again because in the water—fed females which did not lack the feeding action the activity of the CA showed dropping tendency gradually still, it could be said that the activiting of the CA was possibly effected by the nutrition but it was never related to the adult feeding action. In another respect, the brain of the female adult had not significant effect on the activiting CA. The oocytes could depositing vitellin in individuals removed brain tissue on the day of eclosion, which showed that the activting of CA was not concerned with brain.

CA活性的体外测定说明饲水个体的CA同样具有活性，不取食个体血淋巴中Vg的存在以及卵母细胞中卵黄的沉积表明，在不取食的个体中CA同样具有活性，所以CA的活化与成虫期的取食动作无关，与成虫是否取食花蜜也无太多的联系，但是CA活性的维持可能受成虫期营养的影响，如果以卵母细胞发育和CA体积大小作为CA活性的指标，则饲水个体CA的活性在后期受到了影响，说明饲水不能替代取食蜂蜜来维持成虫期CA的活性；成虫期脑对CA的活化无明显作用，羽化当日摘除脑的个体，其卵母细胞仍然可以沉积卵黄，说明CA的活化与脑无关，而是受某种不确定的因子的影响；用抗JH物质—早熟素—Ⅱ以10ug／虫的剂量在颈部点滴处理雌虫，对Vg的发生和卵巢的发育具有一定的迟缓作用，其原因有待于进一步的研究。

There are three sedimentary cycles developed in each basin, relating to three times of deepening and shoaling of the lake.

每个盆地基本上都发育三个沉积旋回，经历了三次湖盆加深、变浅的过程，后期多被火山岩覆盖。

This thesis compared the effect of Uracil, ITS, and ATP on the maturation of bovine oocytes and further development, observed the microstructure changes of oocytes and parthenogenetic embryos among different groups, and granule cell apoptosis among different groups.

本文对比了添加尿嘧啶和三价因子等试剂对牛卵母细胞成熟及后期发育的影响、观察了不同组之间成熟牛卵母细胞和孤雌激活胚胎显微结构变化和不同组之间颗粒细胞凋亡情况。

This paper analyzes the compound attractor structure of a new three-dimensional autonomous chaotic system.

分析了一种新的三维自治混沌系统吸引子的复合结构。

ON shut rivals out of their transmission systems and shy away from reinvesting their profits in network improvements.

ON将竞争者挡在了其输送体系之后，并不愿将其收益再投资于网络改建工作。