| |||
| 文档信息系统 | |||
|
documentation information system : 10 phrases in 5 subjects |
| Earth sciences | 2 |
| Electronics | 4 |
| Name of organization | 2 |
| Telecommunications | 1 |
| United Nations | 1 |
| |||
| 文档信息系统 | |||
|
documentation information system : 10 phrases in 5 subjects |
| Earth sciences | 2 |
| Electronics | 4 |
| Name of organization | 2 |
| Telecommunications | 1 |
| United Nations | 1 |