人類“補天”40年 南極臭氧層有望2060年恢復
国产亚洲精品欧洲在线观看
1985年??(nian)3月??(yue)22日??(ri)??,《保??(bao)護??(hu)臭??(chou)氧??(yang)層??(ceng)維??(wei)也??(ye)納??(na)公??(gong)約??(yue)》(簡??(jian)稱??(cheng)“公??(gong)約?(yue)”)締??(di)結??(jie)??,開?(kai)啟??(qi)了??(le)全??(quan)球??(qiu)性??(xing)的??(de)“補??(bu)天??(tian)”行??(xing)動??(dong)??。??HPIQISAIZUqibao666888 1985nian ??(nian)3yue ??(yue)22ri ??(ri)??,《bao ??(bao)hu ??(hu)chou ??(chou)yang ??(yang)ceng ??(ceng)wei ??(wei)ye ??(ye)na ??(na)gong ??(gong)yue ??(yue)》(jian ??(jian)cheng ??(cheng)“gong ??(gong)yue ?(yue)”)di ??(di)jie ??(jie)??,kai ?(kai)qi ??(qi)le ??(le)quan ??(quan)qiu ??(qiu)xing ??(xing)de ??(de)“bu ??(bu)tian ??(tian)”xing ??(xing)dong ??(dong)??。??
發(fā)布于:北京市