相似中心

The Art Centre will be built next month,its construction is similar to these ancient ones.

这个艺术中心将在下个月建成，它的构造和那些古代建筑很相似。

The form of the stable geomagnetic field is like that of a bar magnet at the center of the Earth.

稳定地磁场的形状与地球中心的棒磁铁的形状相似。

However, the centriole is not essential for spindle formation, although an analogous structure, the basal body, is responsible for organizing the microtubules of UNDULIPODLA.

但中心粒对于纺锤体的形成并不是必须的，尽管具有相似的结构－基体，中心粒对于波动足微管的形成有重要作用。

Secondly, the relevance feedback approach requires relevant documents to be similar to each other. That is, they should cluster. Ideally, the term distribution in all relevant documents will be similar to that in the documents marked by the users, while the term distribution in all nonrelevant documents will be different from those in relevant documents. Things will work well if all relevant documents are tightly clustered around a single prototype, or, at least, if there are different prototypes, if the relevant documents have significant vocabulary overlap, while similarities between relevant and nonrelevant documents are small.

第二，相关反馈方法需要相关文档之间相似，即它们可以聚类，理想地，所有相关文档 term 分布应该相似，相关档即用户标记的文档，同时不相关文档应该与相关文档的 term 分布不同，如果所有的相关文档都很紧凑地聚在一个单一的中心点，或至少有不同的中心点，如果相关文档有明显的词汇重复，同时相关与不相关文档相似性比较小，它才是可行的。

Through obtaining anonymous users' browsing path set, on the basis of the new definition of path similarity, building the users' browsing path similarity matrix, and based on this, designing anonymous users' browsing path clustering algorithm to obtain the clustering result set and calculate various cluster centers, the typical anonymous users' browsing path was got.

通过获取的匿名用户浏览路径集，依据新的路径相似度定义，建立用户浏览路径相似度矩阵，并在此基础上设计实现了匿名用户浏览路径聚类算法，获得聚类结果集，并计算各类的中心，得到典型匿名用户路径。

It may be due to the following two reasons: 1 High steric hindrance caused by rigid structure of substituted fluorenone preventsthe approach of the chiral reductor;2 The prochiral center is, moreover, linked to two coplanar aromatic rings, which due to strong conjugation are highly electronically similar and thus it becomes extremely difficult to distinguish between them.

主要是以下两个原因：1取代芴酮的刚性结构产生高的空间位阻，阻止了手性催化剂的接近；2潜手性中心旁的两个芳香环不仅立体构型非常相似，而且高度的电子相似，很难被手性配体识别。

The deformation of conductive particles in pure metal connected by anisotropically conductive adhesives has been investigated using finite element analysis. The results indicate that the increment in stresses of the conductive particles begins at the contact area toward the boundary through the centers of conductive particles when the reduction in height increases. When stress is over the yield strength, the similar behavior was observed. So the deformation of conductive particles is not uniform, which means that the deformation of conductive particles is the same as the stress does.

采用有限元模拟分析了各向异性导电胶连接的纯金属导电颗粒的变形过程，研究结果表明，随着压下量的增加，导电颗粒的应力增加由接触面开始，经中心区域向导电颗粒的周边扩展，大于屈服强度的应力变化与此相似，因此导电颗粒的变形是不均匀的，即导电颗粒的变形由接触面开始，经中心区域向周边区域进行。

The results of catalytic activity show that both Ni-B and Ni-P sample have the same kinetic equation for hydrogenation of 1, 3-cyclopentadiene to cyclopentene and the same TOF. Therefore, it can be suggested that they have the similar active site. The catalytic activity of Ni-B sample is higher than that of Ni-P sample, and it is due to the more active sites of Ni-B sample having.

催化活性测试表明，Ni-B与Ni-P催化环戊二烯加氢反应对环戊二烯具有相同的动力学方程，而且两者具有相似的氢转换频率，表明两者的活性中心本质上是相似的，类金属不同导致的电子转移方向的不同仅仅影响反应的初活性，宏观活性的差别在于两者活性中心数量的不同。

In the rice leaves infected by RDV Yunnan isolate, the distribution of cells full of virus particles formed a belt which was a center of infection and multiplication of virus, around the cells fall of virus particles were some cells with the different extent of lesion as follows: disappearance of membrane system of chloroplasts, there were virus particles in some chloroplasts, and some sine or assembled virions in the mitochodria or cytoplasma but not in nuclei ,and intact subcellular structure in the cell far away from the infected center; In the rice leaves cell infected by Zhejiang isolate, some cells were full of virions, but the distribution of cells didn't form the belt, other cytopathological characters were similar to the cells infected by Yunnan isolate.

RDV云南分离株浸染的水稻叶片中，充满病毒粒体的细胞呈条带状分布，呈现出明显的侵染和增殖中心，在充满病毒粒体的细胞周围，相邻细胞有不同程度的病变，叶绿体膜系统消失，部分叶绿体中含有病毒颖粒，线粒体残体及细胞质中有分散或聚集的病毒粒体，细胞核中未见病毒粒体，离侵染中心较远的细胞中亚细胞结构较完整；RDV浙江分离株侵染的水稻叶片中，部分细胞充满病毒粒体，无明显的条带状分布，其他细胞病理特征与RDV云南分离株侵染的水稻叶片相似。

Numerical simulation shows that the location and intensity of the modeled high and low pressure centers is consistent with the observation. The pressure gradient intensity of cyclone closes to observation. The regional distribution, transportation direction, centers of the cold, worm advections have similar characters with fact. On the other hand, the temperature stratosphere simulation result is slightly bigger than the fact.

数值模拟结果表明，模拟高压、低压中心位置和强度与实况较为吻合，气旋的气压梯度强度与实况较为接近；冷暖平流在分布区域、输送方向、强中心位置上也与实况具有较相似的特征，但是温度平流模拟的结果在量值上略大于实况。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失