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
- Spearman-Brown formula
- Spearman correlation coefficient
- Spearman rank correlation
- Spearman rho-metric
- Spearman's correlation coefficient
- Spearman's rank correlation coefficient
- Spear of the Nation
- Spear with Bronze Handle and Iron Blade of Guo State
- SPEC
- SPEC benchmark
- Specht
- Specht property
- special
- special Abelian function
- special abelian variety
- Special Act for Normalization and Limitation of Advanced Placement in Public Education
- special action
- special air return lane in mining area
- Special and Differential Treatment
- special antenna
- special aptitude tests
- special archives about preparation of the Yangtze Gorges Project in the Republic of China Era
- special archives container
- Special Arms
- Special Arts Education