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學(xué)習(xí)快評(píng)丨qibao666888　　但??(dan)是??(shi)對(duì)??(dui)于??(yu)普??(pu)通??(tong)人??(ren)來(lái)??(lai)說(shuō)??(shuo)??，不?(bu)能?(neng)盲??(mang)目??(mu)開(kāi)??(kai)展??(zhan)觀??(guan)測(cè)??(ce)活??(huo)動(dòng)??(dong)??，因??(yin)為??(wei)這??(zhe)個(gè)??(ge)時(shí)??(shi)間??(jian)段??(duan)土??(tu)星??(xing)與??(yu)太?(tai)陽(yáng)??(yang)的??(de)距??(ju)離??(li)太??(tai)近??(jin)??，沒(méi)??(mei)有??(you)專(zhuān)??(zhuan)業(yè)?(ye)人??(ren)員?(yuan)指??(zhi)導(dǎo)??(dao)??，一??(yi)般??(ban)不??(bu)容??(rong)易??(yi)找??(zhao)到??(dao)??，還??(hai)有??(you)可??(ke)能??(neng)發(fā)??(fa)生??(sheng)太??(tai)陽(yáng)??(yang)光??(guang)灼??(zhuo)傷??(shang)眼??(yan)睛??(jing)的??(de)危??(wei)險(xiǎn)??(xian)??。??　　土??(tu)星??(xing)環(huán)??(huan)這??(zhe)個(gè)??(ge)“大??(da)圓??(yuan)環(huán)??(huan)”的??(de)直??(zhi)徑??(jing)大??(da)約??(yue)是??(shi)28萬(wàn)??(wan)公??(gong)里??(li)??，相??(xiang)當(dāng)??(dang)于??(yu)地??(di)月??(yue)距??(ju)離??(li)的??(de)三??(san)分?(fen)之??(zhi)二??(er)??，但??(dan)是??(shi)土?(tu)星??(xing)環(huán)??(huan)的??(de)平??(ping)均??(jun)垂?(chui)直??(zhi)厚??(hou)度??(du)卻??(que)只??(zhi)有??(you)10米??(mi)左??(zuo)右?(you)??。?所??(suo)以??(yi)說(shuō)??(shuo)??，土??(tu)星??(xing)的??(de)光??(guang)環(huán)??(huan)“薄??(bo)如??(ru)蟬??(chan)翼??(yi)”??，那??(na)它??(ta)是??(shi)由??(you)什??(shen)么??(me)組??(zu)成??(cheng)的??(de)呢??(ne)？??。