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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??(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(jù)??(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(shè)?(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(shù)??(shu)不??(bu)小??(xiao)于??(yu)15次??(ci)”??！　∨??(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(jù)??(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(shè)??(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(shù)??(shu)不??(bu)小??(xiao)于?(yu)15次??(ci)”?。。