内胚层的

Results demonstrated that the level of ROS was greater in embryo than in aleurone layer, and only very little ROS could be detected in starch. Furthermore, the ROS produced in embryo were mainly localized inside cells but not on cell membrane.

结果表明，胚细胞产生的活性氧最多，糊粉层细胞次之，淀粉细胞几乎不产生活性氧；而且，胚细胞产生的活性氧主要定位在细胞内，细胞膜上不产生。

Results demonstrated that the level of ROS was greater in embryo than in aleurone layer, and only very little ROS could be detected in starch. Furthermore, the ROS produced in embryo were mainly localized inside cells but not on cell membrane. By contrast, ROS from aleurone layer were accumulated on cell membrane.

结果表明：胚细胞产生的活性氧最多，糊粉层细胞次之，淀粉细胞几乎不产生活性氧；而且胚细胞产生的活性氧主要定位在细胞内，细胞膜上不产生；糊粉层细胞产生的活性氧主要定位在细胞膜。

The rearrangement of the blastula into a three-dimensional organism with inner middle and outer layers occurs during gastrulation.

在原肠胚形成过程中，囊胚重新排列，形成包括内层，中层，外层的三围组织。

Germ potential is established after conception in a totipotent zygote and retained subsequently during development in blastomers of morula , cells form the inner cell mass of blastocyst , epiblast and population of primordial germ cells .

种子潜能的确定是全能的受精卵形成之后，并且随后在桑葚胚，胚泡内层细胞，外胚层和原生殖细胞的发育过程中保留。

Female flowers: tepals 5 or 6 or several; carpels 2 or 3; ovary superior, 2- or 3-locular; styles 2 or 3, free, persistent; stigma broadly recurved; interstylar nectaries present or lacking; ovules 2 per locule, pendent, anatropous, bitegmic, crassinucellar; micropyle formed by inner integument or by both integuments.

雌花 花被片5或者6或者几个；心皮2或3；子房上位，室2或3；花柱2-3，离生，宿存；宽的柱头下弯；花柱间的蜜腺有或者无；胚珠每室2，下垂，倒生，具双珠被，具厚珠心；珠孔由内珠被或者两层珠被形成。

Seeds ellipsoid to pyriform, dull to ± shiny; seed coat with thick inner layer of dense black sclerenchyma surrounded by outer layer of compact parenchymatous tissue; endosperm copious; embryo straight or nearly so; cotyledons ovate to elliptic, flattened; hypocotyl superior.

种子椭圆形到梨形，黯淡到发亮；种皮具厚的紧密黑色的厚壁组织内层，被紧密的薄壁组织外层所包裹；胚乳丰富；胚直立或近直立；子叶卵形到椭圆形，扁平；下胚轴上位。

Seeds remaining attached in dehisced fruit; seed coat with thick inner layer of dense black sclerenchyma and spongy outer layer bounded externally by a shiny black pellicle; endosperm copious; embryo straight or slightly curved; cotyledons elliptic, flattened; hypocotyl superior.

种子附存于开裂的果中；种皮具厚的内层深黑色厚壁组织和海绵状的外层，其外部边界具发亮的黑色表膜。胚乳丰富；胚直或稍弯曲；子叶椭圆形，扁平；下胚轴上位。

The simple pigment epithelial cell layer, the optic ventricle, the primitive neuroblastic layer and the peripheral fibrous layer were observed. The number of both the retinal layer and cellular layer increases in the 35 day old Giant panda.

发现胚后64小时龄大熊猫视网膜的分化程度很低，色素层已形成，但视泡腔明显；神经层由外面数层长梭形、内面数层圆形细胞核及无核的纤维层构成。35天龄大熊猫视网膜细胞层次增多。

GFP fluorescence was visible early at the 2-cell stage and then became stronger in the blastocysts of all three species. However, the distribution of the GFP signals was restricted to the cells of inner cell mass and no fluorescence was detectable in trophectoderm cells.

结果显示：牛Oct-4启动子驱动的GFP基因在3个物种的2-细胞胚胎就已经开始表达，在囊胚期表达加强且只特异表达于内细胞团中，而不表达于滋养层。

In this study, in utero transfection plasmid DNA method was set up to embryonic mouse. The GFP expression vector pCAGGS-IRES-EGFP was microinjected into the lateral cerebral ventricle of E 14.5d mouse embryos through the uterine wall. Then, the 30 V square-wave pulse was delivered across the head for 5 times and interval 50m sec by electrodes in parallel with the median raphes.

本研究旨在通过子宫内电穿孔法，建立鼠胚大脑皮层体内基因转移体系：将带有绿色荧光蛋白的表达载体pCAGGS-IRES-EGFP显微注入胚胎期14.5 d的鼠胚侧脑室中，电极沿与脑中缝平行的方向夹持鼠脑，在电压30 V，脉冲时间50 ms，脉冲数5的条件下方波电击，将外源基因转移到室管膜层细胞。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐