查询词典 multimedia PC

In order to introduce the formal techniques such as stepwise refinement, automatic transformation and testing based on formal specification to the multimedia field, we first present a powerful subset of Allen's interval algebra as the temporal specification language to multimedia program.

为了在多媒体领域中应用逐步求精、程序自动生成和面向形式规范的并发系统测试等形式化技术，本文首先研究一个表达能力足够的Allen区间代数的子集合，以它作为多媒体对象时序关系的描述语言。

This paper makes a taxonomy of networked multimedia application at the beginning,and then introduces some more important basic concepts involved in the multimedia communication, including static media and continuous media,isochronous communication and asynchronous communication,and so on.

本文首先对网络环境下的多媒体应用程序进行了分类，介绍了多媒体通信所涉及的一些比较重要的基本概念，包括静态媒体和连续媒体概念、等时通信和异步通信概念等，讨论了连续媒体数据的基本特征。

Multimedia can help students focus attention on the link between knowledge, rather than fragmented, isolated individual point, use multimedia learning system, students are faced with "where" the "study" of choices to retrieve the information needed.

多媒体能引导学生把注意力放到知识间的联系上，而不是片断、孤立的个别点上，使用多媒体系统学习，学生面临着"往哪走""学什么"的选择，以检索所需的信息。

Combined with the application of OOD in formal specification of distributed multimedia system, a scheme building on ground of LOTOS/QTL (or Esterel/QL) and adopting the idea of OOD has been given. This method can be used to construct time model and synchronization model in distributed multimedia systems.

结合对面向对象技术在分布式多媒体的形式化描述中应用的方法分析，本文提出了一种以LOTOS/QTL或Esterel/QL为基础，融合面向对象技术的形式化描述方案，该方案可用于建立分布式多媒体系统的时间模型和同步模型。

Firstly, the basic concept and convention about formalized stand language LOTOS is introduced, and, the language was improved and extended by adding discrete time domain and time operator to confirm its syntax and semantics rules. Then, a special multimedia synchronization system and implement algorithm is proposed by anatomizing multimedia synchronization problems in distributed environment.

本文首先论述了形式化规范语言LOTOS的基本概念与约定，对其进行了基于时间的改进和扩充，引入了离散时间域和时间操作算子，然后确定其相应的语法定义和语义规则，通过仔细分析分布式环境下的多媒体同步问题，基于时间扩充的LOTOS，给出了一种特殊的多媒体同步系统以及具体的算法描述。

With the rapid development and low-cost of digital multimedia, digital multimedia applications become more and more widely.

随着数字多媒体技术的迅速发展以及成本的急剧下降，数字多媒体的应用范围也越来越广泛。

In multimedia transaction market on Internet, copyright of multimedia is short of effective protection.

现在大多数多媒体商务系统主要是采用密码技术来确保交易过程中的数据完整性、交易双方的身份认证和交易行为的不可否认性。

Company's main products are: electrical, electronics, electric mode, the number of electricity, electric drive, machine tools, electrical and mechanical, digital language learning system; Dianhuajiaoshi multimedia computer multimedia teaching network equipment and home appliances comprehensive experimental physiology of complete sets of equipment; full transparency car Teaching model vehicle driving simulator, such as seven series over 100 varieties, it is the technical schools, tertiary institutions necessary laboratory products, products on the market has been well received by the education departments, schools welcome, The products of the enterprises have become the preferred products science and education sector.

公司主要产品为：电工、电子、模电、数电、电力拖动、机床、机电、数字语言学习系统；多媒体电化教室；计算机多媒体教学网；家电综合实验设备及生理化成套设备；全透明汽车教学模型；汽车驾驶模拟器，等七大系列一百多个品种、它是职技校、大专院校的实验室必备之产品，产品投放市场以来，深受教育部门、各类学校的欢迎，本企业的产品已成为科教界首选产品。

The invention further relates to another method of realizing welcome messages, which comprises the steps of acquiring a message indicating whether the user identification registers for a multimedia message service or not when the user identification is not the local user identification; and sending the welcome media message according to the user identification when the user identification registers for the multimedia message service.

本发明还涉及另一种实现欢迎消息的方法，当所述用户标识不是本地用户标识时，获取所述用户标识是否注册了多媒体消息服务业务的信息；当所述用户标识注册了多媒体消息服务业务时，执行根据所述用户标识发送欢迎多媒体消息。

TheAdvancestoIP Multimedia Subsystem architecture, built on the 3rd Generation Partnership Project 2 (3GPP2)'s Multimedia Domain, supports both IMS/MMD and non-Session Initiation Protocol services. In terms of network operation, A-IMS as extensions to IMS/MMD enhances the IMS/MMD network security with the addition of Security Operation Center, posture agent, etc. Some parts of the A-IMS framework are still under development sUCh as terminal support for the posture agent, security information exchange, and security policy definition.

改进的IP多媒体子系统基于3GPP2的多媒体域架构，包含了所有IP多媒体子系统/多媒体域业务功能，并增加了对非会话发起协议应用的支持；从网络运营的角度，针对IMS/MMD网络安全提出了一些扩展和补充，如增加了安全操作中心和姿态代理等，使IMS/MMD网络的安全性得到了较大改进。A-IMS仍处于框架性描述阶段，还有很多细节尚不明确，如终端对姿态代理的支持能力、安全信息交换的内容、安全策略的具体定义等，有待于进一步研究。

In the chapter 2, the theoretic knowledge about the photosensitive resin and the grinding tools was firstly introduced.

第二章阐述了光固化树脂结合剂磨具的相关理论研究。

Do not use the program's indenting or margin-setting features; these will be added during typesetting.

不要使用缩排，页面边缘设置之类的选项，偶看不大懂。