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　　此??(ci)次??(ci)出??(chu)艙??(cang)活??(huo)動??(dong)??，是??(shi)目??(mu)前??(qian)空??(kong)間??(jian)站??(zhan)任??(ren)務(wù)??(wu)期??(qi)間??(jian)出??(chu)艙??(cang)設(shè)??(she)備??(bei)數(shù)??(shu)量??(liang)最??(zui)多??(duo)的??(de)一??(yi)次??(ci)??，航??(hang)天??(tian)員??(yuan)需??(xu)要??(yao)移??(yi)動??(dong)至??(zhi)多??(duo)個(gè)??(ge)作??(zuo)業(yè)?(ye)點(diǎn)?(dian)進(jìn)??(jin)行??(xing)安??(an)裝??(zhuang)操??(cao)作??(zuo)??。??　　中??(zhong)國??(guo)航??(hang)天??(tian)員??(yuan)科??(ke)研??(yan)訓(xùn)??(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(gè)??(ge)全??(quan)面??(mian)提?(ti)升??(sheng)??。??單?(dan)次??(ci)出?(chu)艙??(cang)活??(huo)動??(dong)時(shí)??(shi)間??(jian)延??(yan)長??(chang)至??(zhi)8小??(xiao)時(shí)??(shi)以??(yi)上??(shang)??，活?(huo)動??(dong)關(guān)??(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)??。。