查询词典 yolk nuclei

Megaspore mother cells undergo meiosis, which results in the formation of 4 megaspores in a row. The chalazal-most cell develops into an 8-nuclei embryo sac after 3 rounds of mitosis. A mature embryo sac is produced after cellularization and nuclear migration.

结果表明：1大孢子母细胞经过减数分裂形成直线排列的4个大孢子，其中珠孔端的3个大孢子退化，合点端的大孢子进行3次有丝分裂，形成八核胚囊， 8个核迅速细胞化，最终发育为成熟胚囊。

He won a 950 Nobel Prize for discovering methods of photographing atomic nuclei and for his study of mesons.

他因发现了原子核摄影术及对介子的研究而获750年诺贝尔奖

When the deletion was seen in a patient ,it was present in all the Ph+ metaphases and nuclei.

仁和代写代发医学论文：提供专业的医学论文写作，修改，翻译，发表服务。

It is the purpose of this article to examine the possible role of the impact of large meteorites or asteroids in the production of continental nuclei.

本文的目的就是：测试在大陆中心的产生中的大陨星或小行星的冲击的可能角色。

It's the force that holds atomic nuclei together and even as we now know holds protons together in terms of their more basic building blocks, quarks and muons.

这是该部队一起举行原子核，甚至认为我们现在知道质子一起在其更多的基本构建模块，夸克和介子。

It's the force that holds atomic nuclei together and even as we now know holds protons together in terms of their more basic building blocks, quarks and muons.

这是武力，认为原子核在一起，即使我们现在知道质子共同拥有在其更基本的构建模块，夸克和介子。

The amount of nuclei for the synthesis of zeolites was relatively small, and large single crystals were prepared successfully.

同时，由于F〓的络合作用，扩大了分子筛合成的相区。

Previous results have established a rate of interaction between WIMPs and nuclei that varies depending on WIMP mass.

以前的结果已经确立了一个依赖于WIMP质量的WIMPs跟原子核之间的反应速率。

Alter intragastric administration of Ecr to rats, the effect of Ecr on the changes of gastric motility was detected. At the same time, the changes of frequency of electro-physiological activity, as well as expression of c-Fos in nucleus tractus solitari and dorsal-nuclei of the central bulb were also observed. The mechanism of Ecr on gastric motility were also detected by observing the activation of the NTS and DMV.

在前期工作的基础上，采用灌胃给药方法，给大鼠以最有效剂量的萝卜提取物按60mg/kg灌胃后，经胃电记录，观察其对胃运动的影响，并对其对中枢支配胃运动的迷走复合体(dorsal vagal complex， DVC)中神经元放电频率的变化以及c-Fos表达的情况为标志，观察上述两个核团中神经元被激活状况，来探讨萝卜提取物促胃动力的作用机制。

Following intracarotid injection of capsaicin (10μmol, 0.1 ml), the ELI neurons were markedly increased in nucleus paragigantocellularis lateralis, locus coeruleus, area postrema and nucleus tractus solitarius, as compared with the results of vehicle-control rats, while the FLI neurons of raphe nuclei and periaqueductal gray were not affected.

与对照组相比，颈总动脉注射辣椒素(10μmol， 0.1 ml)时，脑干内巨细胞旁外侧核、蓝斑、最后区和孤束核等部位的FLI神经元显著增加，而中脑中央灰质和中缝核群的FLI神经元则无明显改变。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。