运用EDA技术、采用VHDL语言使用自顶而下的方法对系统进行了描述，并在FPGA芯片上实现。

Use of EDA technology, and the use of VHDL top-down method, the system has been described, and the FPGA chip to achieve.

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在技术领域，我们从20世纪的自顶而下的工业化技术，转向了21世纪的网络技术，在这个时代大量的新事物出现。

In technology we're moving from a 20th century hierarchical top down view of industrial technology to a 21st century view of networks in which things like emergence are the key properties.

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这些IT负责人不再推动发起正式的、自顶而下的决策过程，而是引导人们对社会性软件的自然倾向，从而在其中协同工作并作出决策。

Instead of promoting a formal, top-down decision-making initiative, these it leaders will tap people's natural inclination to use social software to collaborate and make decisions.

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