bolt-ball net frame structure 螺栓球网架结构
SDH is made from SDH network unit. Its basement of transmission technology is frame structure whose net functions include normal management, trouble management and property management and so on.
SDH由SDH网络单元组成，其传输技术基础是帧结构，其网络功能包括一般性管理、故障管理、性能管理、配置管理、安全管理。
With frame combination structure, net carrying capacity with 800KG.
机柜采用框架组合结构，静载承重达800KG；
Net frame system structure, which provides powerful technical support and guarantee for construction and development of network course.
NET框架体系结构的一部分，它为网络课程的建设与开发提供了强有力的技术支持和保障。
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