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　　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(dòng)??(dong)過(guò)??(guo)程??(cheng)中??(zhong)的??(de)核??(he)心??(xin)裝??(zhuang)備??(bei)??，承??(cheng)擔(dān)??(dan)保??(bao)障?(zhang)著??(zhe)航??(hang)天??(tian)員??(yuan)在?(zai)艙??(cang)外??(wai)活??(huo)動(dòng)??(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(jù)?(ju)了??(le)解??(jie)??，中??(zhong)國(guó)??(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(shè)??(she)計(jì)??(ji)標(biāo)??(biao)準(zhǔn)??(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(shù)??(shu)不??(bu)小??(xiao)于??(yu)15次??(ci)”??。　　(央??(yang)視??(shi)新??(xin)聞??(wen)客??(ke)戶??(hu)端??(duan))。