 |
| |||
| 程序保护 | |||
|
program protection : 28 phrases in 8 subjects |
| Aviation | 2 |
| China | 1 |
| Earth sciences | 2 |
| Ecology | 9 |
| Environment | 2 |
| Name of organization | 1 |
| Technology | 2 |
| United Nations | 9 |
|
| |||
| 程序保护 | |||
|
program protection : 28 phrases in 8 subjects |
| Aviation | 2 |
| China | 1 |
| Earth sciences | 2 |
| Ecology | 9 |
| Environment | 2 |
| Name of organization | 1 |
| Technology | 2 |
| United Nations | 9 |