Positioning, Navigation and Time
| Technology Working Group
| positioning, navigation and time | |
| el. | 定位、导航和授时 |
| Technology Working Group | |
| el. | 技术工作组 |
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| 定位、导航和授时 | |||
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Positioning, Navigation and Time : 3 phrases in 2 subjects |
| Electronics | 2 |
| Space | 1 |