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| 联合国环境规划署防治荒漠化方案活动中心 (DC-PAC) | |||
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Desertification Control Programme Activity Centre : 3 phrases, 2 sujets |
| Nations unies | 1 |
| Science du désert | 2 |
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| 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, 2 sujets |
| Nations unies | 1 |
| Science du désert | 2 |