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　　神??(shen)舟??(zhou)十??(shi)九??(jiu)號??(hao)乘祝(cheng)組??(zu)的??(de)第??(di)三??(san)次??(ci)出??(chu)艙??(cang)活??(huo)動??(dong)??，也??(ye)是?(shi)空??(kong)間??(jian)站??(zhan)階??(jie)段??(duan)的??(de)第??(di)19次?(ci)出??(chu)艙??(cang)活?(huo)動??(dong)??，這??(zhe)次??(ci)出??(chu)艙??(cang)任??(ren)務(wù)?(wu)具?(ju)有??(you)出?(chu)艙?(cang)設(shè)??(she)備??(bei)多??(duo)、設(shè)??(she)備??(bei)尺??(chi)寸??(cun)大??(da)、安??(an)裝??(zhuang)點(diǎn)??(dian)位??(wei)多??(duo)的??(de)特??(te)點(diǎn)??(dian)和??(he)難??(nan)點(diǎn)??(dian)??，天??(tian)地??(di)密??(mi)切??(qie)協(xié)??(xie)同?(tong)??，圓?(yuan)滿??(man)完??(wan)成??(cheng)了??(le)神??(shen)十??(shi)九??(jiu)乘??(cheng)組??(zu)出??(chu)艙?(cang)活??(huo)動??(dong)的??(de)收??(shou)官??(guan)任??(ren)務(wù)??(wu)??。??　　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(dān)??(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(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)”??。。