| |||
| 分类编码 | |||
|
classification and coding : 6 phrases in 6 subjects |
| Aviation | 1 |
| Business | 1 |
| Information technology | 1 |
| International Monetary Fund | 1 |
| Space | 1 |
| Technology | 1 |
| |||
| 分类编码 | |||
|
classification and coding : 6 phrases in 6 subjects |
| Aviation | 1 |
| Business | 1 |
| Information technology | 1 |
| International Monetary Fund | 1 |
| Space | 1 |
| Technology | 1 |