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　　此??(ci)次??(ci)出?(chu)艙??(cang)??，神??(shen)舟??(zhou)十??(shi)九??(jiu)號(hào)??(hao)航?(hang)天?(tian)員??(yuan)蔡??(cai)旭??(xu)哲??(zhe)和??(he)宋??(song)令??(ling)東??(dong)身??(shen)著??(zhe)中??(zhong)國(guó)?(guo)空??(kong)間??(jian)站??(zhan)艙??(cang)外??(wai)航??(hang)天?(tian)服??(fu)??，圓??(yuan)滿??(man)完??(wan)成??(cheng)出??(chu)艙??(cang)活??(huo)動(dòng)?(dong)??。??至??(zhi)此??(ci)??，中??(zhong)國(guó)??(guo)空??(kong)間??(jian)站??(zhan)艙??(cang)外??(wai)航??(hang)天??(tian)服??(fu)已??(yi)經(jīng)??(jing)圓??(yuan)滿??(man)保??(bao)障??(zhang)空??(kong)間??(jian)站?(zhan)任??(ren)務(wù)??(wu)以??(yi)來??(lai)的??(de)19次??(ci)出??(chu)艙??(cang)活??(huo)動(dòng)??(dong)??，使??(shi)用??(yong)年??(nian)限??(xian)次??(ci)數(shù)?(shu)超?(chao)出??(chu)“3年??(nian)15次??(ci)”的??(de)壽?(shou)命??(ming)設(shè)??(she)計(jì)??(ji)指??(zhi)標(biāo)?(biao)???？??(kong)間?(jian)站?(zhan)艙??(cang)外??(wai)航??(hang)天??(tian)服??(fu)是??(shi)我??(wo)國(guó)??(guo)首??(shou)個(gè)??(ge)在??(zai)軌??(gui)開??(kai)展??(zhan)壽??(shou)命?(ming)評(píng)??(ping)估??(gu)工??(gong)作??(zuo)的??(de)飛??(fei)行??(xing)產(chǎn)??(chan)品?(pin)???！　∨??(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?(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)祝。??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)”祝。。