可实现性

According to the characteritie of EHV transmission lines fault concomitance with arc, a new protection principle and criterion based on wavelet analysis is first proposed and established, which is able to distinguish fault in-area and out-area.

应用EMTDC对一实际EHV线路的简化模型作了大量的仿真分析，表明该保护原理的正确性以及判据的有效性、可实现性。

In the project design proposes many kinds of plans, from the reliability, the realizability, the overall performance and so on carries on the plan comparison, the selection scheme.

方案设计中提出多种方案，从可靠性、可实现性、综合性能等进行方案比较，选择方案。

Considering the performance requirements and the complexity of construction, realizability, cost requirement, etc, we finally decide to implement system by transmitting data over low voltage power line network.

综合考虑系统的性能要求及实际系统的施工复杂程度、可实现性、成本要求等，最终决定采用基于低压电力线网络进行数据传输的方式实现。

At the saxne time, meLS VPN----a solution for integrated model is discussed indetail, including network comPonents of MPLS VPN and its operation mode. There arealso some problems that must be solved to build a MPLS VPN, such as customer addressspace overaPping, netWork accessibility constraini, VPN route uPdating, saving ofbackbone bandwidth, reducing of complexity of PE rooters and accessing Internet fromVPN, etc. MPLS VPN can solve all the problems, as well as bring us some values inscalability, imPlemotation and maintenance.

在此基础上，详细阐述了集成模型的解决方案——MPLS VPN的工作原理，包括MPLS VPN的网络构成和运行模式，对实现虚拟专用网所面临的问题：用户地址空间重叠、网络连通性约束、VPN路由信息更新、节省骨干网带宽资源、降低PE路由器处理的复杂性以及如何在虚拟专用网内访问Internet等提出了解决方案，并对MPLS VPN在扩展性、可实现性、可维护性方面的优势进行了说明。

Green function defined inphase space differs from one in coordinate space by its struc-ture which exhibits nonlocatity in coordinates and oscillatorybehavior with respect to momenta.

在相空间中定义的Green函数不同于通常坐标空间的Green函数，在结构上显示出对坐标的高度非局域性，而对动量则显示出振荡行为。

The upper front part of a saddle;a saddlebow.

前鞍桥马鞍前面的上部分；前鞍桥