工学 ﹝常用航天器轨道﹞ 释 geosynchronous orbit 地球同步轨道 运行周期与地球自转周期（23小时56分4秒）相同的顺行人造地球卫星轨道。俗称24小时轨道。
geosynchronous orbit 同步轨道
网络与数据通信 无线网络 释文 geosynchronous orbit 对地同步轨道
- public service system of museum digital culture and creativity
- public service TV program
- public shaming of offender
- Public Shareholder
- public signal
- public space
- public space lighting
- public spending for operation
- public sphere
- public spirit
- public sports facilities
- public sports service system
- public square dancing
- public supervision over urban and rural planning
- public switched telephone network
- public switched telephone network，PSTN
- public telephone system of urban rail transit
- public television and broadcasting institutions of Hong Kong
- public television network
- public television stations in the United States
- public toilet，public lavatory
- public tram transportation facilities
- Public transit
- public transit
- public transportation card information