演化地

The earth is a complicated system, and it has been continuously moving differentiating and evolving since it had been formed. Not only has the earth layering structure, but it has vertical movement of materials. The movement is prompted by the mechanism of force and heat of the centrifugal force to be formed by the rotation and revolution of the earth, and difference of temperature, pressure, density, viscosity and velocity in the between core and mantle, and radioactive heat, et al. The expressive means of the mechanism of force and heat are the precesses of mantle plume and mantle fluid. Not only are ore-materials of core and mantle carried directly into crust, but ore-materials of crust are activated and accumulated into proper location by the mantle fluid having the supercritical nature.

地球是一个复杂的系统，自形成以来，一直处于不停地运动、分异和演化过程；它不仅存在着圈层结构，而且伴随其自转和公转的离心力，以及核幔间的温度差、压力差、密度差、粘度差、速度差和放射性蜕变热等动热机制，同时存在着以地幔柱和地幔流体作用方式的物质垂向运动；这一过程，不仅直接向地壳带入核幔成矿物质，而且通过流体自身的超临界性质，将沿途活化已有初步富集的成矿物质转移至地壳适宜部位集中成矿。

The optical soliton propagation in monomode optical fibres with third-order dispersion is reinvestigated by using variational method. The evolution equations for optical soliton parameters are found, and self-wave-peak shift phenomena is explained quantitatively.

用变分法重新研究了单模光纤中的三阶色散对光孤子传输的影响，找到了光孤子参数的演化方程组，定量地解释了光孤子的自波峰漂移现象。

In existing ich-nofacies model trace-making courses with ulti-stages and ulti-tiering are not stressed. Existing ichno-tiering models are based mainly on the Mesozoic-Cenozoic data. The reported data show that tiering distributions of Chondrites are different in Palaeozoic and Mesozoic-Cenozoic.

流行的遗迹相和遗迹阶层模式的不足是：前者在操作上，简单地将遗迹化石及其组合处理为同沉积或准同沉积的物理沉积构造，忽略了造迹活动的多阶段和多阶层的特点；后者的资料基础仅依据中生代以来的地层记录，对重大生物-环境事件和造迹生物生态习性演化对遗迹阶层形成和分布的影响注重不够。

Numerical simulations by assemblies of circular panicles can qualitatively reflect the general characteristics of liquefaction behavior of sand. The interval effect of aspect ratio of elliptical panicle on the mechanical behavior of numerical sample is obtained, and the reason is related to the initial average co-ordination number. The regularity of evolution of fabric in the process of sand liquefaction under cyclic loading can be qualitatively achieved by using the numerical sample randomly mixed of panicles with different shapes. Numerical simulations can not only demonstrate the macro phenomenon of particle breakage, mostly importantly, it can also expose the evolution of particle breakage microscopically, and would contribute to further research of the micromechanics of particle breakage.

研究结果表明：Hertz-Mindlin非线性接触模型适用于变围压条件下砂土力学性质模拟；纯圆颗粒模拟能够定性地反映饱和砂土振动液化的一般规律；颗粒长短比变化对砂土力学性质的影响具有区间效应，其原因与粒间初始平均接触数有关；不同形状随机混合试样能够从定性规律上反映振动液化过程中砂土的细观组构演化规律；数值模拟不仅可得到颗粒破碎宏观响应，而且可以分析内部接触力变化和实现对粘结破裂位置的追踪，从而可进一步研究颗粒破碎细观力学机制。

Based on the a series of research carried in typical gold lodes in Linglong, Jiapigou, Dongfeng and Xiaoqinling and related data, it is suggested that the deposit type is concentrated in the circumference of the North China Platform, occurring in the Archean granite-greenstone belts, being adjacent to deep-cut faults and being accompanied by the Mesozoic, remelted l-type granites. The spatial distribution features of the deposit type indicate that the deposits are closely related to the multiple evolution of the mantle plumes.

通过对玲珑、夹皮沟、东风和小秦岭等典型中深脉状金矿及相关资料的研究表明：中深脉状金矿主要分布于华北地台的周边，位于太古代花岗—绿岩带中，与深大断裂相邻，同中生代重熔I型花岗岩伴生，这种空间展布特征与地幔的多级演化有关。

However, whether such a sense of fairness evolved independently in capuchins and humans, or whether it stems from the common ancestor that the species had 35 million years ago, is, as yet, an unanswered question.

然而，是否这种公平与公正的感觉曾在猴和人中各自独立地演化而来，或者是否源于三千五百万年前那个我们共同的祖先，所有一切，仍然是一个未解的疑团。

In the mechanism aspects, based on our experiments and consulting other experiments and local theoretical works of other researchers, physical phenomena in every stage are completely studied in detail, such as twin dynamic interfaces in a bulk target, ejections and expansions of plasma, deposition of thin films.

在机理的研究方面，以我们已有的薄膜材料制备实验资料为基础，参照国内外PLD薄膜制备的实验文献和有关PLD局部过程理论研究工作，对PLD技术的各个阶段的物理现象，其中包括脉冲激光烧蚀块靶产生的双动态界面、等离子体的发射和膨胀、等离子体沉积成膜诸阶段的演化，进行了比较深入细致地研究。

Since the reform and opening up, the research paradigm has shifted from structuralism to neo-classicism and has been evolutes in stages.

改革开放30年以来，农民工的研究范式总体上经历了由结构主义向新古典主义的转变，并在分阶段地演化。

After decomposition of fitness function and adjustment of constraint condition, scheme and detail evolutes respectively and hierarchically in various processors in local network.

进行适应函数分解和约束转换后，方案设计和细部设计分别由局域网中的不同处理机分层次地协同演化完成。

Study suggests the strata of this block are of the following feature: various sequence interface types, first-class fault and tectonic movement control strata framework styles; formation and evolution of Maodun sub-high makes single-lined fault dustpan-type depression complicated to produce unsymmetrical grabens and igneous rock, which influences detrital rock infilling pattern in the depression.

研究认为，本区地层格架有以下特点：多种层序界面类型、地层格架的样式受凹陷内一级断层和构造运动的控制、毛敦次凸的形成及演化将单断箕状凹陷复杂化，形成不对称地堑、火成岩的发育影响了箕状凹陷的碎屑岩充填模式。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。