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　　中??(zhong)國??(guo)航??(hang)天??(tian)員??(yuan)科??(ke)研??(yan)訓??(xun)練??(lian)中??(zhong)心??(xin) 劉??(liu)東??(dong)岳??(yue)：二??(er)代??(dai)艙??(cang)外??(wai)服??(fu)是??(shi)在??(zai)使?(shi)用??(yong)壽??(shou)命??(ming)、安??(an)全?(quan)可??(ke)靠??(kao)性??(xing)、活??(huo)動??(dong)工??(gong)效??(xiao)和??(he)測??(ce)試??(shi)維??(wei)修??(xiu)性??(xing)等??(deng)方??(fang)面??(mian)有??(you)一??(yi)個??(ge)全??(quan)面??(mian)提??(ti)升??(sheng)??。??單??(dan)次??(ci)出??(chu)艙??(cang)活??(huo)動??(dong)時??(shi)間??(jian)延??(yan)長??(chang)至??(zhi)8小??(xiao)時??(shi)以??(yi)上??(shang)?，活??(huo)動??(dong)關??(guan)節(jié)??(jie)的??(de)壽??(shou)命??(ming)提??(ti)升??(sheng)10余??(yu)倍??(bei)?，活??(huo)動??(dong)工?(gong)效??(xiao)大?(da)幅??(fu)提??(ti)升??(sheng)?，具??(ju)備??(bei)較??(jiao)好??(hao)的??(de)測??(ce)試??(shi)性??(xing)和??(he)維??(wei)修?(xiu)性?(xing)???！　∨??(cang)外??(wai)航??(hang)天??(tian)服??(fu)是??(shi)航??(hang)天??(tian)員??(yuan)艙?(cang)外祝(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??(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)”??。。