工学 卫星通信 释 backbone network 骨干网 信息网络的核心部分，用于连接城域网或区域网。
网络与数据通信 协议体系与组成结构 释文 backbone network 主干网
- on-spot monitoring
- On State Governance
- On Style
- Ontario Province
- Ontario School Question
- Ontario Workmen’s Compensation Act
- On the 16th Night Stepping on the Lamp, Drinking with Qu Zhongyu and Wang Xinfu in the West Building of the Dazhong Bridge
- On the Archival Science in contemporary China
- On the Art of Building in Ten Books
- On the Art of Poetry
- On the Art of Suzhou Pingtan
- On the Body
- On the Citizen
- On the Commonwealth
- On the Correct Handling of Contradictions among the People
- On the Creation of Popular Science Films
- On the Cultivation of Communist Party Members
- On the Debate between Realism and Subjective Issues
- on the drama ontology
- On the dramatic
- On the Essence of Money
- On the Eve
- On the Eve of My Leaving the Capital
- on the fly calculation
- on-the-fly compression