本文叙述螺栓球节点网架的设计原理与方法，以及对螺栓球的加工方法、测试等作了研究。
This paper describes the design principles , ind methods of grid space framework with bolted ball joints, and studies the methods for manufacturing the bolted balls and testing.
第二章对光突发网络的基本原理、网络节点结构，包括核心节点和边缘节点进行了叙述。
Chapter two points out the principle of OBS, network node structure includes core node and edge node.
于是我们就安排他在每个重点讲完的时候喝水，比如在长篇叙述之前或之后这样的节点。
We actually plan his water breaks at the end of major points in his talks--before or after he delivers a great line.
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