 |
| |||
| classified catalog code | |||
| classified encoding | |||
| sorting code number | |||
| classification and coding | |||
| categorization code | |||
| 分类编码: 21 phrases in 12 subjects |
| Aviation | 1 |
| Business | 2 |
| Economy | 2 |
| Electronics | 2 |
| Information technology | 2 |
| International Monetary Fund | 1 |
| Logistics | 1 |
| Management | 1 |
| Mathematics | 1 |
| Name of organization | 2 |
| Space | 3 |
| Technology | 3 |