不分化的

The ultrastructural changes during the development of sieve element companion cell complex (SE/CC complex) in Populus deltoides were investigated using electronic microscopy. The result showed that SE and CC tome from the same secondary phloem mother cell. The development of sieve element went through three stages, i. e. immature, mature, and degenerate stage. In immature stages the sieve element presented radial expansion, cell wall thickening, and production of sieve plastid and P-protein. The cytoplasma selectivly autolysed in mature stage. At the same time, karyoplasm was dispersed, and nuclear envelope was not clear, or karyoplasm was disorgnized, and nuclear envelope was clear. The karyopalsm finally turned into P-protein. In degenerate stage, the cytoplasm completely disappeared, and the function was lost.

利用电镜技术研究美洲黑杨次生韧皮部筛管和伴胞发育过程中细胞超微结构的动态变化，观察到筛管和伴胞由同一个次生韧皮部衍生细胞分裂分化形成筛管约发育历经未成熟期、成熟期和衰退期的变化未成熟期筛管分子表现为细胞的径向扩展、壁的增厚、筛管质体和P-蛋白质的产生；成熟期筛管分子细胞组分发生选择性自溶，细胞核核质弥散状，核膜不清晰，或核膜清晰而核物质降解，最后细胞核完全解体转化为P-蛋白质类的物质；衰退期筛管分子细胞质完全解体消失，失去功能。

You love her but your her killed her look what your mercy did to her give up your good side she will live if your will be the prince of darkness again video made by drusilla once upon a time who with their actions till when a princess said stop the fight was hard and a love story was bom but after that the wicked were defeated and no one could divide us but tales shouldn't have an happy end ??

你爱她，但你的，她杀死了她的期待是什么你的慈悲没有向她放弃你的好的一面，她会活，如果你将成为黑暗王子再次视频所作drusilla从前的时候，他们与他们的行动，直至当一个公主说，停止斗争，是很难和一个爱情故事是bom的，但之后恶人被击败，并没有任何人可以分化我们的故事，但不应该有一个快乐结束？？

We find that attributive auxiliary word DE in "Chinese and three ethical languages" has no etymon relationships. Being a postnatal grammatical device, DE appears after the division of different phylums in Sino-Tibetan languages.

经过比较发现，汉藏语"一语三族"的定语助词"的"没有同源关系，"的"不是原始汉藏语所固有的，而是在分化为不同的语支后才产生的，是一种后起的语法手段。

The result hence suggests that just to protect and recover the habitat of a certain group and to inhibit hunting are good enough in a sound protection plan for the Sichuan snub-nosed monkey rather than to construct artificial corridors among mountains, which would drastically reduce the cost in protection action.

基于这一序列数据组的分子系统学分析表明：川金丝猴的遗传差异主要存在于一定地域内的社群间，在不同山系群体间的分化则尚不明显；从而提示在川金丝猴的保护中，着重保护和恢复各社群的生境并阻止猎杀可能已是一个经济有效的策略，在已隔离的山系或大群间修建人工走廊的价值可能不大。

So, during the period of transformation acceleration, our focus on the change of the economic growth structure, the division of the scientific and technological resources factors and the complication of systematic environment of scientific and technological resources, our seeking for the macro-environment and realistic strong point of the scientific and technological development, our exploration of the intension of scientific and technological resource and the way of rational allocation, promotion of the scientific and technological progress and innovation in an all-round way, upgrade of the contributing power of science and technology to economic development, are very significant to dispel the uncertain factors of society transformation period effectively, form new norm of society reconstruction and ensure the steady transformation of society.

因此，在加速转型期，关注经济增长结构的变化，科技资源要素的分化以及科技资源系统环境的复杂化，寻求科技发展的宏观环境和现实支撑点，探索科技资源内涵及合理配置方式，全面促进科技进步与创新，提高科技对经济发展的贡献力，对于有效消除社会转型期的不确定因素，形成新的社会整合规范，保障社会的平稳过渡具有重要的意义。

From the tests,we have obtained some structural variant features related with salt resistance and demonstrated the successful introduction of Rhizophora apicularta DNA into tomato.This thesis contains two parts. In the first part,the morphological and anatomical structures of the leaves were investigated. As to the morphology,some difference between control and transformed tomato were found. The leaf dimensions of the transformed tomato with unextended leaves were smaller than that of control. These structure changes should help to decrease the evaporation of water effectively and release the physiological drought resulted from saline.

本实验分两部分：第一部分、对转化番茄的形态及细胞显微结构进行观察与分析，实验表明转化番茄形态与对照相比有明显的变化，其叶面积变小，叶形收拢，这种结构可有效地减少水分的蒸发，缓解由盐胁产生的生理干旱；组织解剖结构结果显示，耐盐番茄在细胞结构上发生了明显的变异：其气孔器倾向下陷，表皮毛增多，叶脉微管组织不发达，微管束周围出现增多的贮水细胞，叶缘及其它部位表面分化出大型的多细胞分泌型结构，这些结构与转化番茄后代较强的耐盐能力有关。

Leucocytic differentiation antigen 40 sign-al access participates in regulation of inflammatory reaction accommodation of major cell component (vascular endothelial cell、vascular smooth muscle cell and macrophage), it is playing critical role in AS process, participates ather-osclerotic occurrence and development ,reside in atherosclerotic plaque cell thro-ugh CD40-CD40L interaction, induce activate by itself , express and secrete profit to happen immune response、inflammatory reaction、hemagglutination t-hrombogenic proteo-cytokine.

白细胞分化抗原40 (CD40)信号通路参与了动脉粥样硬化斑块内主要细胞成分(血管内皮细胞、血管平滑肌细胞以及巨噬细胞)炎症反应的调节，其在AS进程中扮演着关键性的角色，参与了动脉粥样硬化的发生和发展；存在于AS斑块内的细胞通过CD40-CD40L相互作用，导致自身活化，表达和分泌了有利于免疫应答发生、炎症反应、血凝和血栓形成的蛋白质细胞因子，如激活在AS斑块中的关键性细胞成分如黏附分子、炎症因子、基质金属蛋白酶等的产生，导致斑块的不稳定和破裂，而最终导致粥样硬化斑块病变的恶化。

The expression of AT2R gene can be regulated efficiently in vivo by local delivery of MSC with dual-stable expression of AT2R gene, thus reduces the formation of intimal hyperplasia.④AT2R gene can influence the expression of ECM and significantly promote the cellular apoptosis in the injury rat carotid artery.⑤These data demonstrate the clinical potential of AT2R regulatable expression to prevent restenosis after PCI.

研究结论：(1)与VSMC直接接触可以诱导MSC向血管成分细胞分化；(2)构建的Dox-on可调控的MSC细胞株诱导活性可靠，使外源AT2R基因的表达处于有效的主动控制下；(3)局部导入MSC不影响球囊损伤后大鼠颈动脉新生内膜增生；(4)由MSC介导的AT2R可调控表达受到Dox的良好调控，可有效抑制球囊损伤后大鼠颈动脉新生内膜增生；(5)AT2R影响血管损伤后修复时ECM成分的表达，并促进细胞凋亡的发生，可能是AT2R介导抑制新生内膜形成的机制。

The growth of plantlets with the height of 1-2 cm and 3-4 leaves was compared on MS basal medium containing various organic compounds, including banana, carrot, potato, coconut water, and tryptone. The result showed that the growth of oncidium plantlets was the best on medium containing banana, potato and tryptone altogether with respect to their plant height, leave number, root number, root length, fresh weight, and dry weight. The next better media were the control and the Banana medium, followed by the Potato medium.

另外取高约1-2公分，带3-4片叶片的分化小苗，培养於含不同浓度有机添加物（香蕉、胡萝卜、马铃薯、椰子水、及tryptone）的半量MS培养基，以探讨最适合文心兰瓶苗生长的培养基，试验结果显示，在同时含香蕉、马铃薯及tryptone三种成份的培养基生长的小植株不论在株高、叶数、根数、根长、鲜重、及乾重均较其他培养基为佳；不含添加物之1/2MS培养基、及含香蕉的培养基次之，而在含马铃薯之培养基较差。

But if its benefits are to be shared, and the world not to be polarised between those who are in and those who are ever more marginalised, we need a new mindset and new global arrangements.

但如果要分享其好处，并让那些处于全球化进程的国家和边缘化更严重的国家之间不出现分化，我们就需要新的心态，新的国际安排。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。