Operation Support
| Subsystem
| operation support | |
| securit. | 经营后援; 经营支援 |
| 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; 子体系次要系统 |
| |||
| 经营后援; 经营支援 | |||
|
Operation Support : 37 phrases in 10 subjects |
| Air defense | 5 |
| Aviation | 10 |
| Communications | 1 |
| Electronics | 3 |
| Information technology | 4 |
| Rail transport | 2 |
| Space | 7 |
| Technology | 1 |
| Telecommunications | 3 |
| United Nations | 1 |