查询词典 evolution

Therefore, The mechanical equilibrium problem and the evolution problem of white dwarf star must be engaged in research of the composite system composed of the electron sub system and helium ion sub_system.

因此， 对白矮星的力学平衡问题和演化问题都必须以由电子子系和氦离子子系组成的复合系统来进行研究。

The profundity of research work was few about Chinese southwest horse\'s genetic diversity, origin evolution, genetic relationship, resources distribution, and the mechanism of dwarfishness.

但国内外关于西南马遗传多样性、起源进化、亲缘关系、资源分布、矮小机理等方面的研究还相对缺乏。

In the second part, we have considered the polariton system described by the model effective Hamiltonian involving single mode photon field interacting with a transverse optical phonon in a more realistic form. On this basis, we have discussed the dynamical evolution of the wave function , the dynamical variables and the non-classical properties for the system in a analytic form for the first time.

第二部分将极化激元系统约化成模型单模光子—横向声子有效相互作用系统，在此基础上以解析形式首次讨论了系统的波函数、力学量和压缩态、亚泊松分布等非经典效应的动力学演化行为。

It is very important to dynamically simulate and forecast the development and evolution of soil erosion processes.

动态模拟和预测土壤侵蚀的发育及演化过程具有十分重要的意义。

It played a key role in the evolution of Northern Song Dynasty.

但在当时，这一集团的政治地位并不高。

The multiple superpositional evolution of the Tarim basin is controlled by the wave prcesses of earth's crust, and the main cycles of these processes are 740～760Ma, 200～230Ma, 100～110Ma, 60～70Ma and 30Ma.

塔里木盆地的多期叠合发展受地壳波状运动的控制，控制塔里木盆地的主要周期有740～760Ma、200～230Ma、100～110Ma、60～70Ma、30Ma。

Using a one-dimension magnetic filament in the Earth\'s magnetotail to represent the bubbles,we examine the motion of bubbles created by reconnection in the Earth plasma sheet.Some properties of time evolution of the filament can be obtained from the numerical simulation.The magnetic field line in the filament created by reconnection is more dipolar than the surrounding magnetic field line,and the motion of the filament displays a strong earthward flow.The results show that MHD waves such as an Alfv?

本文研究地球等离子体片中重联后的磁泡的运动，用地球磁尾中的一维磁细丝来表示磁泡，通过数值模拟发现，重联产生的磁细丝磁场比周围磁场偶极性更强，运动时表现出了很强的地向流。

As the age of the season, the Mid-Autumn Festival formed late, but this move is long moon, the Eastern Jin Dynasty, in Nanjing,"Niu Houzhu moon", that is has been the most influential take stories, as well as for thousands of years evolution of the broad masses of people to celebrate the Mid-Autumn Festival Music Festival.

作为岁时节令，中秋节形成较晚，但玩月这举却由来已久，东晋时，在南京"牛渚玩月"，即是流传至今影响最广的赏月佳话，以至演化为千百年来广大人民群众乐以欢度的中秋节佳节。

The basal geomorphology structure of the Tidal-Basin System of the Tiaozini Sandbanks is watershed and tidal creek system. We analyses its formation, evolvement, geomorphology characters and development and discusses the main influence factors which is water, sediment and space. We divide the evolution phases which is formation phase, autumn phase and contabescence phase. In the end we confirms its main functions, which is discharging the folium water on the tidal flat of the Tidal-Basin in the end of the ebb-tide, transporting sediment to Tidal-Basin through tidal creek systems, confining the swing range of the dynamical axis of flood tide or ebb tide, balancing the dynamical status of the South and North. At the same time, we compare coastal tidal-basin and sandbanks tidal-basin on geomorphology characters, formation causes, style and so on.

条子泥潮盆—潮沟系统的基本地貌结构为分水滩脊和潮沟系统，本文分别对它们的形成与发育、地貌特点及动态变化进行了分析，并探讨了影响其发育的主要因素，即来水条件、来沙条件、空间条件，划定了其主要发育阶段，即形成期、成熟期、衰亡期；在上述分析的基础上确定了潮盆—潮沟系统的主要功能，即通过潮沟系统渲泄落潮后期滞留在其潮盆范围内的滩面薄层水、通过潮沟系向潮盆内部输入或输出泥沙、限制涨落潮动力主轴摆动范围、平衡南北两侧动力状态；同时针对岸滩潮盆—潮沟系统与沙洲潮盆—潮沟系统的地貌特征、成因类型等进行了对比分析。

The whole failure process of the echelon fault structure is revealed by evolution of the deformation field.

全场连续的变形数据清晰地反映了雁列断层结构的变形破坏过程的各种细节。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。