查询词典 evolution equation

The SARS virus origin which obviously differs from the theory of out space origin and the theory of wildlife origin was theoretically discussed based on principles of pollution evolution ecology,pathogenesis and infectant characteristics of SARS,and some relevant experimental evidence. It emphasizes on the fact that increasingly combined pollution in China provides a substantial basis for virus evolution.

针对当前广为流传的SARS病毒"太空起源说"和"野生动物来源说"两种理论，本文根据污染进化生态学原理和SARS病毒发病传染特征，以有关实验结果为科学依据，阐述了SARS病毒的起源问题，指出：我国当前环境日益严重的复合污染为SARS致病病毒的产生提供了适宜的外部生态条件和物质基础，SARS致病病毒可能起源于多个病毒的基因重组或融合，更可能是一种来自于感冒病毒进化而形成的超级感冒病毒。

In this paper,ecology theory was used to investigate the structure and evolution of interagency information sharing system of E-Government,and both structure model and evolution model for this system were proposed.

本文运用生态学的理论和方法，考察了电子政府部门间信息共享系统的结构和进化方式，提出了电子政府部门间信息共享生态系统的结构模型和进化模型。

Some of geological evolution process in Qinghai-Tibet plateau and were recorded in corresponding basins, By the research of sedimentary filling pattern and dynamic background at Cenozoic in Hoh Xii basin, Qaidam basin and Jiuquan basin, we can find that evolution sequences of these three basins are similar: strike-slip basin or extensional basin at the early stage. foreland basin at the middle stage, intermontane basin at the end.

对可可西里盆地、柴达木盆地和酒泉盆地新生代的沉积充填与盆地动力学背景的研究发现，3个盆地的演化序列具有相似性，盆地的早期为走滑盆地或伸展盆地性质，中期发育前陆盆地，最后以山间盆地结束。

This dissertation finds that Buzan"s system is evolutive, which is different from the mainstream theories" quiescent international system ,and also Buzans system has its evolution power ,instutions and directons .we also found that the progress of productivity put forward the evolution of international system, the emergence of new units is its sign.

通过研究，本文还发现，与主流国际体系理论不同，布赞的国际体系是演变的，并为国际体系的演变设定了动力、机制、方向。

This dissertation finds that Buzan's system is evolutive, which is different from the main stream theories' quiescent international system ,and also Buzan's system has its evolution power ,instutions and directons .we also found that the progress of productivity put forward the evolution of international system, the emergence of new units is its sign.

通过研究，本文还发现，与主流国际体系理论不同，布赞的国际体系是演变的，并为国际体系的演变设定了动力、机制、方向。

Evolution is an intrinsic property of software, and the process of software evolution consists of a series of activities.

王炜，博士生，主研领域：软件工程，形式化方法，软件演化演化性是软件的固有属性。

Thermal evolution, which means thermal evolution has no significant influence on kerogen carbon isotopes of coal measure strata.

这说明热演化作用对煤系地层中干酪根的碳同位素组成将没有明显的影响。

These drives (or forces, or "tendencies of evolution") are what cause the Kosmos to manifest or tetra-evolve[9]—simultaneous arising and evolution in the 4Q.

这些趋向(或是力量，或是"进化的指向")设计造成Kosmos显现或是四向发展[9]的原因—在4Q中同时发展和进化。

The key points of DGA is to start evolution with initial population evenly distributed in searching space to avoid the leakiness of subspace, to accelerate the searching process by directed crossover and mutation, to improve holistic survival and adaptive ability by means of competition and parallel evolution in genetic system. However, the crossover and mutation act on different lays in space made the searching uniform.

其基本思路是以空间上均匀分布的初始点展开演化以避免子空间的遗漏，以有方向性的杂交和变异加速和调节搜索，同时杂交和变异作用在不同层面上使搜索在整体上均匀化，通过遗传系统里的并行竞争提高整个群体的生存适应力，从而达到整体优化的目的。

The research of phonetic grouping is mainly the analysis of historic evolution, but the lexical grouping in this thesis focuses on synchronic aspect. Sounds and lexicon have their own features and evolution rules. Therefore it is inevitable that grouping phonetically and lexically should be different.

山东方言语音分区的研究是对方言语音历史演变的分析，而本文所做的词汇分区的讨论着重于共时平面，而且语音和词汇各有不同的特性和演变规律，因此以语音分区和以词汇分区必然会得出不同的结论。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。