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- climatic changes (3)
- government policy (2)
- 研究 (2)
- carbon dioxide mitigation (1)
- climatology (1)
- data processing (1)
- economic aspects (1)
- economic policy (1)
- emissions trading (1)
- environmental aspects (1)
- global environmental change (1)
- international cooperation (1)
- severe storms (1)
- technique (1)
- 企业家 (1)
- 商业服务 (1)
- 民用航空 (1)
- 气候变化 (1)
- 生平事迹 (1)
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