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原標題：24小时日本在线观看

　　艙??(cang)外??(wai)航??(hang)天??(tian)服??(fu)是??(shi)航??(hang)天??(tian)員??(yuan)艙??(cang)外?(wai)活??(huo)動?(dong)過??(guo)程?(cheng)中??(zhong)的??(de)核?(he)心??(xin)裝?(zhuang)備??(bei)??，承??(cheng)擔??(dan)保??(bao)障??(zhang)著??(zhe)航??(hang)天??(tian)員??(yuan)在??(zai)艙??(cang)外??(wai)活??(huo)動??(dong)中??(zhong)的??(de)生??(sheng)命??(ming)安??(an)全?(quan)和??(he)高??(gao)效??(xiao)作??(zuo)業(yè)??(ye)??。??據?(ju)了??(le)解?(jie)??，中??(zhong)國??(guo)空??(kong)間??(jian)站??(zhan)艙??(cang)外??(wai)航??(hang)天??(tian)服?(fu)是??(shi)第??(di)二??(er)代??(dai)“飛?(fei)天??(tian)”艙??(cang)外??(wai)航??(hang)天??(tian)服??(fu)??，按??(an)照??(zhao)設?(she)計??(ji)標??(biao)準??(zhun)??，使??(shi)用??(yong)壽??(shou)命??(ming)為??(wei)“在??(zai)軌??(gui)貯??(zhu)存??(cun)3年??(nian)??，其??(qi)間??(jian)??，出??(chu)艙?(cang)使??(shi)用??(yong)次??(ci)數??(shu)不??(bu)小??(xiao)于??(yu)15次??(ci)”???！　〈?(ci)次??(ci)出??(chu)艙??(cang)活??(huo)動??(dong)??，是??(shi)目??(mu)前?(qian)空??(kong)間?(jian)站??(zhan)任??(ren)務??(wu)期??(qi)間??(jian)出??(chu)艙??(cang)設?(she)備??(bei)數??(shu)量??(liang)最??(zui)多??(duo)的?(de)一??(yi)次??(ci)??，航??(hang)天??(tian)員??(yuan)需??(xu)要??(yao)移?(yi)動??(dong)至??(zhi)多??(duo)個??(ge)作??(zuo)業(yè)??(ye)點??(dian)進?(jin)行?(xing)安?(an)裝??(zhuang)操??(cao)作??(zuo)??。??。