查询词典 evolution

The first part is an analysis on the evolution of enfeoffment and the problems of princes related. The second part analyzed the princes activities in vary stages so that a new comprehension to the civil strife came into being here. The last part analyzed the relation between such evolution and general trend of the dynasty from the angle of imperial clan.

第一部分考察西晋分封制的发展演变过程和诸王出镇问题的形成原因；第二部分详细分析宗室诸王在各个不同阶段的活动状况，形成对"八王之乱"事件的重新理解；第三部分从西晋宗室的角度考察它的发展变化和西晋历史走向的关系。

Although the starting points are different,the both conclusions from Dirac's cosmology and from our theory of damping scale of free currents of two classes are the same:the physical source of uniνerse evolution and of particle evolution is gravitational constant decreasing with the lapse of time,on which there has been contention for a long time.

人们对宇宙演化、粒子演化的物理根源一直存在争议。Dirac宇宙论与作者的2类自由流阻尼标度理论，虽出发点不同，但宇宙演化、粒子演化的物理根源是宇宙的引力常数随宇宙时间的推移而减小的结论却是相同的。

From this equation we obtain the evolution equation of the image surface using the connection of the surface evolution and its level lines.

由这个演化方程，利用曲面演化和其水平线演化之间的关系，得到关于图像曲面的演化方程。

Thirdly, as the result of this research, the author points out that the following competitive and dynamical evolving network should be the target of Chinese IOS: 1 The network is dominated by oligopoly; 2 Large, medium and small-sized enterprises co-exist in the network; 3 This network structure is realized through market adjusting, and it should be the result of autonomous evolution of IOS; 4 As to the realization of this network structure, government only is an exogenous variable and its function is to create the external condition to promote the evolution of IOS.

所以论文提出了我国产业组织结构演进的目标状态应该是"寡头主导，大、中、小共生"的竞争动态演进型产业组织结构，同时强调这种产业组织结构的实现应该是在市场机制的调节下、在产业组织结构的自发演进中实现，政府的作用空间仅仅是为其实现创造外部条件，不可人为安排一种市场结构。

Hu Shi\'s thought was impact from the scientific theory of evolution and the experimentalism philosophy, which directly contributed to his historical evolution of literature and concept of experimental literature; Guo Moruo enthusiastically eulogized the modern science and civilization, and was a favorite of science and scientific spirit, which directly affected his attitude towards Romantic Literature and Romanticism his work was located in.

丰子恺有关文理并举的教育理论和对近代科学文明的批判等，贯穿着对人文理想的执着追求；梁宗岱关于类似"两种文化"的隐忧，走出了传统与现代、中西文化纷争的樊篱，为中国的现代化进程敲响了警钟，但却未能引起中国思想文化界的足够重视。

Cultivation (修炼, Xiulian) is a way of evolution with factitious promotion, and the process of life cultivation is one that factitiously promotes the evolution of life intelligence.

修炼是人为促进的进化方式，生命修炼的过程就是人为促进生命智能进化的过程。

By using a gauge transformation between thetwo eigenvalue problems, we obtain a correspondence between the hie -rarchy of nonlinear evolution equations associated with the Kaup-Newelleigenvalue problem and the hie rarchy of nonlinear evolution equationsassociated with the AKNS eigenvalue problem.

利用规范变换，我们得到了与Kaup-Newell特征值问题相联系的一族非线性演化方程和与AKNS特征值问题相联系的一族非线性演化方程之间的一个对应关系，并给出了Kaup-Newell系统的Darboux变换及其证明。

Further, with the help of Riccati equations, an infinite number of conservation laws for the solton hierarchy are deduced. For the sake of simplicity, taking the general TD hierarchy as an illustrative example, we prove that its 2×2 Lenard pair of operators forms a Hamiltonian pair. Thus the isospectral evolution TD hierarchy is the general Hamiltonian system and possesses the Bi-Hamiltonian structures and Multi-Hamiltonian structures. By using the method of derivation of functional under some constraint condition, a complete one-to-one correspondence between the Hamiltonian functions of the hierarchy and its conservation density functions can be built. These results can also be applied to the isospectral evolution soliton hierarchy of this paper. Finally, there's a gauge transformation between the spectral problem of this paper and the AKNS system. Moreover, the potentials in these spectral problems satisfy the general Miura transformation, the corresponding relationship between the two soliton hierarchies is also given.

进一步本文还通过特征函数的组合关系所满足的Riccati方程，得到了该等谱方程族的无穷多个守恒律；为简便起见，本文以广义TD族为例，由它的2×2 Lenard算子对的性质证明了此算子对为Hamilton算子对，这说明广义TD族是广义Hamilton系统且具有Bi-Hamilton结构和Multi-Hamilton结构；进而利用它的依赖于谱参数的一般守恒密度的积分在约束条件下求泛函导数的方法，得到了广义TD族的Hamilton函数与守恒密度之间的对应关系，这些性质对于由本文提出的2×2谱问题所导出的等谱孤子族仍成立；另外此谱问题与AKNS系统存在着规范变换，位势之间有广义Miura变换，而孤子方程之间也满足一定的等价关系。

The book covers notions by scientists of various branches on the evolutionary relationship between the biosphere and geosphere, evolution features at various levels of living matter organization, and problems of prebiotic evolution and life origin.

这本书涵盖了各部门的科学家之间的生物圈和岩石圈，演化特征的生活问题，各级组织的演化关系的观念，对生命起源和进化和生命起源的问题。

The first part is preface, on the basis of expounding the background, the purpose, the meaning and the thinking of the thesis study, briefly introduce the research achievements of domestic and international urban spatial structure; the second part is summary, expatiate on the connotation, component, research span and space type of urban spatial structure; The third part is theory foundation, mainly introduce the three classical models of city spatial structure in the west country (concentric circles mode, fan-shaped mode and multi-core mode) and the relative city development theories (growth pole theory, dot-axis theory, core-fringe theory, metropolis circle theory and city space evolution theory); The fourth part is general situations of study region; The fifth part is the analysis of Lanzhou city spatial structure evolution, along the historical venation Of city development, on the basis of analyzing industrial structure change, focus on and sumup the characteristics of spatial development and form, meanwhile, analyze factors which influences the spatial development; The sixth part is the analysis of Lanzhou city spatial development trend, put forward the development models of Lanzhou city spatial structure from three space aspects(the core city, the city, region) in the future, they are group gobbet structure, fingers structure, circle structure; The seventh part is to mainly put forward the development strategies for the different spatial structure models.

第一部分为前言，在阐明论文研究背景、目的及意义、思路的基础上，简要介绍了国内外城市空间结构相关研究成果；第二部分为概述，对城市空间结构的内涵、组成要素、研究尺度及其空间类型作以介绍；第三部分为理论基础，主要是对西方城市空间结构的3大经典模型(同心圆模式、扇形模式和多核心模式)以及与本研究相关的城市空间发展理论(增长极理论、点轴理论、核心——边缘理论、都市圈理论和城市空间演化理论)的介绍；第四部分为研究区概况，主要是对研究区域范围的界定及其社会经济发展概况介绍；第五部分是兰州城市空间结构演化分析，顺着兰州城市发展的历史脉络，在分析产业结构变动的基础上，着重对城市空间发展及其形态特征进行归纳总结，并分析了空间发展的主要影响因素；第六部分是兰州城市空间发展趋势分析，从中心城市、市域、区域3个空间层面上提出未来兰州城市空间结构的不同模式，即组团结构、指状结构、圈层结构；第七部分是城市空间发展策略，针对不同的城市空间发展模式提出一些对策建议。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。