查询词典 virtual memory

The Virtual Experiment and Virtual Laboratory appear with the development of computer technique and Virtual Instrument technique.

摘要虚拟实验与虚拟实验室是随着计算机技术、虚拟仪器技术的发展而出现的。

In this paper,by detailed narrations of structure of moveing-felt simulator,the component of virtual reality,the numerical control model of moving-felt platform,and our some research work in the technology of combination between virtual reality and the moving-felt simulator have been introduced,and we also development direction of virtual reality in the future.

通过对动感模拟器组成结构详细的叙述，介绍了虚拟现实的组成，给出了动感运动平台的数控模型，在虚拟技术与动感模拟器结合方面进行了研究，并介绍了虚拟技术未来的发展方向。

In virtual scene, especially in outdoor virtual scene such as flight simulation、 game and war game system, 3D cloud is a very important part because it improves the third dimension of the virtual reality.

在虚拟场景中，尤其是室外虚拟场景，如飞行模拟、游戏和军事演习等系统中3D云是一个非常重要的组成部分，使场景的真实度和交互性大大提高。

The main contents and results of research in this paper are shown as following: It is important to built the motion model of a virtual system. As the virtual object is the submarine in this simulation system, we studied on the motion model of the submarine and gave the submarine six DOF space motion equation MultiGen-Paradigm corporation's modeling software named Creator is used, the modeling of all entities and 3D terrain in virtual ocean environment is accomplished. Then introduced the theory of Large Area Database Management and realized the Large area database management; In the course of 3D scene simulation, Vega is utilized to develop the project. The building of 3D scene is done, which includes the simulation of static and dynamic ocean surface, realization of ocean wave, simulation of bow wave and stern wake, utilization of lighting and material, simulation of cloud and fog, kinematics' modeling of submarine etc.

论文的主要研究工作和成果包括以下一些内容：建立虚拟对象的运动模型是构造一个虚拟系统的关键所在，建立的运动模型准确与否直接关系仿真对象模拟的逼真度，由于本仿真系统的虚拟对象是潜艇，所以对潜艇的运动模型进行了研究，给出潜艇空间六自由度运动方程；利用MultiGen-Paradigm公司的Creator建模软件完成虚拟海洋环境中个实体模型建模和三维海底地形模型的建模；然后介绍了大地形数据库管理(LADBM，Large Area Database Management)技术的基本原理，实现大地形数据库管理；在三维场景仿真中，使用Vega驱动软件进行软件开发，完成了三维场景空间的建立，主要包括动态和静态海洋的仿真、海浪、船首波浪和传尾尾迹的实现，灯光和材质的使用，云和雾的模拟等。

Based on the virtual simulation environment of virtual prototype simulation analytical software ADAMS, the reliability based virtual experimental research was developed on the broadly applied crank - slider mechanism.

基于虚拟样机仿真分析软件ADAMS的虚拟仿真环境，对应用广泛的曲柄滑块机构开展基于可靠性的虚拟实验研究。

While based on the companions model and self-capacity model, selecting companions and allying companions can be realized and agent federations which can be nested are built to support the cooperation in the virtual enterprise. The tasks and activities in the virtual enterprise can be implemented through the activity model in the agent. In the virtual enterprises, we discuss the cooperation and negotiation deeply.

其中，虚拟企业的合作是基于虚拟企业过程模型进行的，通过任务、活动间各种约束关系的满足和实现，触发、执行了逻辑情景的演算过程，实现了合作伙伴间的合作，即将适当的信息在适当的时间传送给适当的人。

The paper first presents a linear timeconsuming model of data access through the analysis of the virtual storage principle and then gives a decision-making method for data placement and access path selection problem. In the development of this method, the concept of equivalent of virtual storage cost is defined to evaluate the data placement cost in the FC-SAN virtual storage environment.

首先通过分析虚拟存储原理提出了一个数据访问耗时的线性模型；然后，就数据放置和访问路径选择提出了一个决策方法；并在进一步探讨这一方法的过程中，定义了&虚拟存储代价当量&的概念，用以评价FC-SAN虚拟存储环境中的数据放置的代价，从而为评价以及如何选择数据放置和访问路径提供了一种定量的手段。

Long int readData(Buffer * pBuffer,/* pointer to the abstract buffer */ byte * pOutput,/* pointer to the output byte array */ long int offset,/* offset of the output byte array */ long int arrayLength /* size of available output byte array */){ while (there is something more to read and there is room for output){ read from the first memory block; if (the first memory block is empty){ delete the first memory block from the linked list and free its memory

在 清单 5 中，该函数销毁性地从 pBuffer 所指向的抽象缓冲区最多读取 arrayLength 个前导字节，并在内存块变为空时从链表中删除它们，然后返回成功读取的字节数目。如果需要，您可以实现一个类似 readData 的函数来允许非销毁性的读取。实现一个函数来返回当前存储在抽象缓冲区中的字节数目，这样可能会带来好处。清单 6。返回抽象缓冲区中的字节数目

This thesis consists of two parts. The first one was that boundary value problem was discrete with five point difference method. Three kinds of memory formats were studied, which were full matrix, half band width and row compress sparse. Full matrix memory format and half band width memory format first was contrasted. The results show that half band width has efficiency in space. Then the algebraic system of finite element method was solved by Gauss-Seidel iteration method to popular row compress sparse memory format.

本论文由两部分组成，第1部分针对边值问题，用5点差分格式进行离散，并对离散矩阵这类大型稀疏矩阵，研究了系数矩阵的3种存储格式的优劣，即：满矩阵存储格式、半带宽存储格式和按行压缩稀疏存储格式，首先我们将满矩阵存储方式和半带宽存储格式进行了对比，迭代法的数值实验表明：利用半带宽存储的矩阵在空间运算方面具有高效性；然后针对目前数值实验中流行的按行压缩稀疏存储格式，实现了有限元离散代数系统的迭代法的求解。

It is put forward in this paper that traditional theories of working memory, which are based on the test of subjects memory for either digits or meaningless non-sense words, fail to explain the highly complicated process of discourse comprehension because the surprising number of components of the memory system involved in discourse comprehension is far beyond the limited capacity of working memory.

文章指出，传统的工作记忆理论是建立在实验室里对受试记忆无意义数字、音节或单词的测试结果之上，并不能真实反映记忆在语篇理解这一复杂认知过程中是如何发挥作用的，因为语篇理解过程所涉及的记忆元素和信息成分远远超出了工作记忆的容量。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。