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學(xué)習(xí)快評(píng)丨qibao666888　　北??(bei)京??(jing)天??(tian)文??(wen)館??(guan)科??(ke)普??(pu)教??(jiao)育??(yu)部??(bu)副??(fu)研??(yan)究??(jiu)館??(guan)員??(yuan)曹??(cao)軍??(jun)表??(biao)示?(shi)??，如??(ru)果??(guo)持??(chi)續(xù)??(xu)觀??(guan)察??(cha)土?(tu)星??(xing)??，會(huì)??(hui)發(fā)??(fa)現(xiàn)?(xian)光??(guang)環(huán)??(huan)朝??(chao)向?(xiang)地??(di)球??(qiu)的??(de)角??(jiao)度??(du)是??(shi)在??(zai)不??(bu)斷??(duan)變??(bian)化??(hua)的??(de)??，大??(da)概??(gai)十??(shi)幾??(ji)年??(nian)會(huì)??(hui)完??(wan)成??(cheng)一??(yi)個(gè)??(ge)輪??(lun)回??(hui)??。??今?(jin)年??(nian)3月??(yue)份??(fen)??，地??(di)球??(qiu)正??(zheng)好??(hao)在??(zai)光??(guang)環(huán)??(huan)的??(de)平??(ping)面?(mian)上??(shang)??，因??(yin)此??(ci)看??(kan)上??(shang)去??(qu)就??(jiu)好??(hao)像??(xiang)光??(guang)環(huán)??(huan)消??(xiao)失??(shi)了?(le)一??(yi)樣??(yang)??。。