| |||
| 联合国环境规划署防治荒漠化方案活动中心 (DC-PAC) | |||
|
Desertification Control Programme Activity Centre : 3 phrases in 2 subjects |
| Desert science | 2 |
| United Nations | 1 |
| |||
| 联合国环境规划署防治荒漠化方案活动中心 (DC-PAC) | |||
|
Desertification Control Programme Activity Centre : 3 phrases in 2 subjects |
| Desert science | 2 |
| United Nations | 1 |