在目前国内外的研究中，OBS实验平台的核心节点和边缘节点都倾向使用灵活，低成本的FPGA(现场可编程门阵列)来实现。

In the current domestic and international study, the core node and the edge node of the OBS experimental platform tend to be implemented by the flexible, low-cost FPGA (field programmable gate array).

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他们的集群是由一系列节点和一个单一核心的交换机组成的。

Their clusters are set up as a set of nodes with a single core switch.

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当然，核心也可管理事例或者Drupal所称的节点。

Of course, the core also manages stories, or what Drupal calls nodes.

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