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| 代码信息单位 | |||
| 码位; 代码单位 | |||
| code bit: 23 phrases in 13 subjects |
| Aviation | 1 |
| Business | 1 |
| Communications | 1 |
| Drilling | 1 |
| Economy | 1 |
| Electronics | 3 |
| Information technology | 2 |
| Management | 1 |
| Mathematics | 1 |
| Oil / petroleum | 1 |
| Space | 3 |
| Technology | 3 |
| Telecommunications | 4 |
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