Presents a architectural design of a high performance ATM switch based upon theoretic analysis, the mode of multi level interconnect of spread module and small switching module used.

在理论分析的基础上提出了一个大容量AT M交换机的结构设计方案，采用扩展模块和小交换模块多级互连方式实现了交换机大容量设计的目的。

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In many portable instruments, the noise and EMI of its switch power supply must be solved, the preferable method is that EMI power is reduced with spread spectrum frequency technique.

在许多便携式设备中，其开关电源的噪声和电磁干扰(emi)是亟待解决的问题，比较好的办法是利用扩频技术来减少EMI信号的功率成分。

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Currently, layer 3 switch network devices have spread from the core of network to the edge of network. It occupys a large part of network devices market.

目前第三层交换机已由网络的核心延伸至网络的边缘，占据了相当大的市场份额。

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For investors who prefer to sacrifice some yield in exchange for greater safety, possibly with the intention of swapping back into speculative grade corporate bonds at a wider spread later on, the most straightforward trade is to switch to Triple-B corporates.

FORBES: Is Emerging Markets Debt Cheap?

Third, to the extent that the fees push commuters to switch from cars to mass transit, they will spread subway and bus costs over more users, thus helping to keep down fare increases.

FORBES: Drive-By Pricing

Given these advantages, copper-based products, such as IV poles and light-switch covers, are increasingly being made to prevent the spread of disease in hospitals and other institutions.

WSJ: To Contagions, This Pen Is Deadlier Than the Sword