查询词典 distributed database

The results show that these gravel silty clays distributed at the range between the rock slope with an altitude lower than 190m and the rock platform with an altitude about 140-150m are formed from sliding; and that those gravel silty clays distributed above 190m of the rock surface are residual, colluvial and talus deposits; and that the gravel sand layer located along Zhuxi River is a kind of alluvial deposit.

研究结果表明：分布在基岩面高程190m以下的斜坡与基岩面高程140~150m平台上的粉质黏土夹碎石土层是由滑坡作用形成的；分布在基岩面高程190m以上的粉质黏土夹碎石土层是由崩积、残积及坡积作用形成的；卵石砂土层是苎溪河的冲积作用形成的。

The author gives the fundamental implementation and the state-of-art research results of distributed video coding, and conclude the comparition of distributed video coding and prediction based video coding from the information theoretical aspest.

笔者归纳了分布式视频编解码技术的基本思路和最新研究成果，并总结了前人从信息论的角度对分布式视频编解码技术和传统的预测编码技术的比较。

In this paper, taking one 1900t/h supercritical pressure once—through boiler installed in East boiler company as subject investigated, analyzing the structure and characteristic of unit, from the mechanism of units, based on the law of quality conservation, energy conservation and momentum conservation, having Lagrange fluid particle tracing idea in hydrodynamics field application in analyzing of unit operational characteristic, author build up the nonlinear distributed parameter general dynamic mathematical model of single-phase heating surface or diphase heating surface in the steam-water system for supercritical pressure once—through boiler, which is suitable numerical calculation and simulation for large scale disturbance and full working conditions change, and enough materializing distributed characteristic of thermodynamic parameter in process and time lag characteristic of energy transportation in tache. The transient responses curve of the system main variables under several disturbance are computed by Computer Simulation for the model, and theoretical analysis shows that the simulation results are reasonable.

本文以东方锅炉集团公司的一台1900 t /h超临界压力直流锅炉为研究对象，在分析机组结构和特性的基础上，从机组的工作机理出发，以质量、能量、动量守恒定律为依据，将流体力学领域中的Lagrange流体质点追踪思想用于机组运行特性的分析上，建立了适用于超临界压力直流锅炉汽水系统单相、双相受热面的非线性分布参数通用动态数学模型，该模型适合于大扰动全工况变化的数值仿真计算，充分体现了过程热力参数的分布特性和环节中能量输送过程的时滞特性，并对模型通过计算机仿真得出各种扰动下系统主要变量的响应曲线，从理论上分析了仿真结果的合理性。

In chapter Ⅰ, a historial review of structure control is given; In chapter Ⅱ, A discussion of the controllability and observablity of flexible structures is given, Two kinds of controllability and observablity index are defined, and applied to actuator allocation; chapter Ⅲ considers the reduction of high order flexible structure mode; the content of chapter Ⅳ is about the basic problem of distributed parameter control system design. It is proved that a stable controllor in mode space may be unstable in real use in distributed paramater systems, also, by closed loop mode concept, a pole assignment method of flexible structure controllor design is given; chapter Ⅴ is about the low-authority controllor design, it is pointed out by use of high order eigenvalue/eigenvector perturbation, a better controllor can be designed; chapter Ⅳ considers flexible structure reduced order control; chapter Ⅶ disscusses the basic problem of flexible structure computer control, analyses discreate controllablity and observablity and its computing, the sample period and coefficient wordlength; chapter Ⅷ is on the problem of low flexibility compensation; chapter Ⅸ is a design example.

在第一章简要回顾了挠性结构控制的历史，并且指出控制中的一些问题；第二章讨论了挠性结构的能控性与能观性，定义了两类能控性程度和能观性程度指标，还将能控性程度概念应用于执行器位置的确定；第三章论述了高阶模型的降价问题，比较了适于挠性结构模型降阶的方法，指出其适用范围；第四章内容是分布参数系统设计的基本问题，首先证明在模态空间中设计的稳定的控制器在实际分布系统上可能是不稳定的，进而根据闭环模态的概念，获得挠性结构控制器设计的极点配置方法；第五章的内容是关于低权控制器的设计问题，指出利用特征值高价摄动和特征向量的摄动，可以设计出更加完善的低权控制器；第六章讨论挠性结构降阶控制问题；第七章讨论挠性结构计算机控制的基本问题，分析了时间离散化模型的能控性和能观性及其计算问题，讨论了采样周期选择和系数字长问题；第八章讨论低挠性结构的补偿问题；第九章的设计例子用来说明第二章和第四章的结果。

If want ecbolic distributed business network, need construction is next generation networks of the foundation with distributed technology.

如果要催生分布式的业务网络，需要建设一个以分布式技术为基础的下一代网络。

Is an ever-green broadleaved tree of Fagaceae, widely distributed over the subtropical area of China, also distributed in Japan, India, Korean and Burma.

青冈是壳斗科的常绿乔木，地理成分属于东亚分布的中国-日本变型，广泛分布于我国亚热带地区，在日本、印度、缅甸等国也有分布。

These are distributed largely in the litter layer, seeds of only 3 extant species were emerged from soil samples. In contrast all of the germinative seeds of the earlier seral species were distributed in the soil.

在种子库中，现存植物产生的种子绝大多数分布于枯枝落叶层，只有少部分（3种）可分布到土壤层，演替前期各阶段产生的种子全部分布在土壤层中。

Then, we gove the fundamental and the products of distributed firewalls. The principle of host firewall in the distributed firewalls system is mainly analyzed.

然后提出了分布式防火墙的基本原理，并给出了分布式防火墙的产品，重点分析了分布式防火墙产品中的主机防火墙原理

Results Among the three groups,the children's rib cartilage had the most blood vessels,the most chondrocytes,well-distributed stain of matrixes,and the type Ⅱ collagen was expressed actively and highest in photedensity.The rib cartilage of teenager group had less blood vessels,unhomogeny distributed stain of matrixes,the enlarged and separated cartilage lacunas.The rib cartilage in adult group showed the least blood vessels,the least chondrocytes.the hyalinization of perichondium,the most deposition of calcium salt,and the type II collagen was expressed at the lowest level in photodensity.

结果 儿童组肋软骨膜血管最丰富，软骨基质染色均匀，软骨细胞数目最多，Ⅱ型胶原蛋白表达最活跃，平均积分光密度值最高；青少年组软骨膜内血管减少，软骨基质染色出现明显的不均质状，软骨陷窝体积变大，并呈分隔状，陷窝内软骨细胞数目减少，II型胶原蛋白表达较儿童组减弱；成人组软骨膜血管、细胞成分明显减少，软骨膜内的纤维成分明显玻璃样变，钙盐沉积较青少年组时明显增多，Ⅱ型胶原蛋白表达较青少年组减弱。

The microstructure of the samples showed that for the Nd-Fe-B with high C content, the grain size of the hard magnetic phase was very inhomogeneous (from 10 to 100μm) and the neodymium-rich boundary was also distributed inhomogeneously. But in the case of lower C content, the grain size of the hard magnetic phase was finer and homogeneous (about 10~20μm), and the neodymium-rich boundary was distributed homogeneously.

SEM和金相显微观察表明：高C含量中的Nd2Fe14B主相的晶粒大小不均匀，小的为10μm，而大的达到100μm，且富Nd相分布也不均匀；而低C含量中的Nd2Fe14B主相的晶粒细小均匀，约为10~20μm，而且富Nd相分布均匀。

Bob Eckert has been chairman and chief executive of Mattel for eight years.

美泰董事长兼首席执行官鲍勃·埃克尔特在任已8年。

The outlook for honors and disgraces carries on and surpasses the traditional outlook for honors and disgraces theoretically, and carries on and develops the theory of construction of socialist mora...

社会主义荣辱观的提出在理论上是对传统荣辱观的一次继承和超越，是对社会主义道德建设理论的继承和发展，在实践上有利于形成良好的社会风尚。