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tracking and communications | |
el. | 跟踪与通信 |
subsystem | |
hydroel.st. | 次级系统 |
math. | 副次体系 |
met. | 分系统; 辅助系统 |
reliabil. | 分系统 |
space | 分 系统 |
tech. | 亚系统; 亚系; 亚体系 |
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跟踪与通信系统 |
tracking and communications subsystem : 37 phrases in 9 subjects |
Air defense | 2 |
Aviation | 8 |
Communications | 1 |
Earth sciences | 1 |
Electronics | 7 |
General | 2 |
Space | 14 |
Technology | 1 |
Telecommunications | 1 |