可移植的

The system has excellent probability, extensionality, easy operation and high security.

系统具有良好的可移植性、可扩展性、易操作性和高度的安全性。

The functions and features of the system are introduced. The questions such as adaptability, expansibility, transferability and perfectibility of the system are discussed.

对所建药物数据库系统的主要功能与特点，系统的适用性、可扩充性、可移植性以及如何使系统更加完善等问题进行了讨论。

Second, a greater degree of portability of applications, and of programmers, is anticipated.

第二， 一个巨大的应用程式可移植程度，和程式设计师是可预期的。

Available to PC players, but also can be easily ported to the embedded system.

可用以PC的播放器，也可方便的移植到嵌入式系统中。

These problems can be solved by introducing Real Time Operation System.

引入嵌入式实时操作系统可有效提高软件设计的效率，使应用软件具有更好的可移植性。

The generic SNMP agent implemented in this paper is transplantable, and can be widely used in various of network deveices.

本文所实现的SNMP代理除了可扩展性较强外，还有较好的通用性和可移植性，具有广阔的应用前景。

The proposed system can be applied in various ultrasonic signal acquisition and processing because of its...

该系统具有较高的灵活性和可移植性，可用于多种超声信号的采集与处理。

Along with these principles, the material in this book (and in Volume 2) will be guided by the following seven signs of successful C++ software libraries: efficiency, discoverability and transparency, expressiveness, robustness, flexibility, modularity, and portability.

除了以上原则之外，本书（及其第2卷）中的内容也遵循优秀C++库的七个标志：效率、可发现性与透明性（discoverability and transparency）、表达力、健壮性、灵活性、模块性，以及可移植性。

This thesis deeply researches the J2EE security strategy on the application tier of enterprise system. The security strategy predigests the information security model and meets the security requirements expediently. But there are some disadvantages when the security requirements become more complex. The expositive security on the Web-Tier can not offer more information for authentication; there is no authentication for EJB-Tier to use, make the EJB-Tier depend on the Web-Tier; J2EE uses database or application server to manage the role information. Use database to manage the role information will increase the complex of enterprise application, and the way of application server will reduce the ability of migrate other J2EE platform. To solve these problems, the thesis designs an improved security strategy model.

本文从企业级系统应用层安全的角度出发，深入研究J2EE多层体系结构的安全策略模型。J2EE提供的安全策略简化了系统的信息安全模型，能够很方便地满足基于J2EE的分布式应用系统的安全需求，但是在面对更加复杂的安全需求时，J2EE安全策略在验证授权和角色管理中还存在不足之处：其在Web层的声明式验证机制无法为用户提供更多验证信息，可扩展性较差；在EJB层缺少业务逻辑层可供采用的验证机制，而是借助于Web层的验证机制，其耦合程度较高有悖于业务逻辑分离于表现逻辑的原则；在角色管理方面，J2EE采用数据库或者应用服务器来管理角色信息，其中，数据库管理角色的方式增加了应用开发的复杂度，应用服务器管理角色降低了系统的可移植性，两者都具有片面性。

The VSCF DFIG wind power generation is transient response proceeding, which is influenced by operation characteristics of generator before and after grid connected. A novel S-Function is adopted to describe the mathematic model of DFIG based on state equation. A complete simulation model of VSCF DFIG wind power generation system based on MATLAB/Simulink and SimPowerSystems is established, which can be used to not only simulate subsystems of no-load operation and generation operation, as well as can be used to but also accurate control parameters of DFIG in simulation. The simulation model have excellent transportability, and can be used DFIG of different power rated if only design relevant controller.

变速恒频双馈电机风力发电是一个受并网前后发电机运行状况影响的暂态过程，利用MATLAB的S-Function编写DFIG的仿真程序，然后结合Simulink和SimPowerSystems工具箱，开发了基于S-Function的空载运行和发电运行的变速恒频双馈电机风力发电子系统模型，在仿真过程中可对双馈电机进行精确控制，然后对其进行了系统整合，本文开发的模型具有可移植性，只要再设计相应的控制器，就可应用于不同功率等级的双馈电机风力发电系统。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。