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| position indicating mark | |||
| 示位标: 52 phrases in 14 subjects |
| Air defense | 2 |
| Aviation | 11 |
| Construction | 1 |
| Earth sciences | 1 |
| Electronics | 4 |
| General | 1 |
| Geophysics | 1 |
| Information technology | 1 |
| Metallurgy | 1 |
| Nautical | 2 |
| Oil / petroleum | 1 |
| Shipbuilding | 2 |
| Space | 5 |
| Technology | 19 |
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