| |||
| B 代码 | |||
|
B-code : 8 phrases in 6 subjects |
| Computer networks | 1 |
| Information technology | 1 |
| Name of organization | 1 |
| Space | 3 |
| Telecommunications | 1 |
| United States | 1 |
| |||
| B 代码 | |||
|
B-code : 8 phrases in 6 subjects |
| Computer networks | 1 |
| Information technology | 1 |
| Name of organization | 1 |
| Space | 3 |
| Telecommunications | 1 |
| United States | 1 |