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#
臭氧层空洞
2 topics with this tag
骑猪兜风
· 7/2/2016
Archive
限制使用氟利昂有用！南极上空的臭氧层空洞逐渐闭合
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201198
骑猪兜风
· 7/2/2016
Archive
南极洲上空臭氧层空洞大幅缩小
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200985
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骑猪兜风· 7/2/2016