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　　此??(ci)次??(ci)出??(chu)艙?(cang)??，神??(shen)舟??(zhou)十??(shi)九??(jiu)號??(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??(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?(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??(guo)首??(shou)個(gè)??(ge)在?(zai)軌?(gui)開??(kai)展??(zhan)壽??(shou)命?(ming)評??(ping)估??(gu)工??(gong)作??(zuo)的??(de)飛?(fei)行?(xing)產(chǎn)?(chan)品??(pin)??。　　中??(zhong)國??(guo)航??(hang)天??(tian)科??(ke)技??(ji)集??(ji)團(tuán)??(tuan) 李??(li)學(xué)??(xue)東??(dong)：目??(mu)前??(qian)對??(dui)我??(wo)們?(men)平??(ping)臺??(tai)沒??(mei)有??(you)什??(shen)么??(me)影??(ying)響??(xiang)??。??但??(dan)是??(shi)為??(wei)了?(le)關(guān)??(guan)鍵??(jian)設(shè)??(she)備??(bei)??，我??(wo)們??(men)還??(hai)是??(shi)要??(yao)裝??(zhuang)防??(fang)護(hù)??(hu)板??(ban)進(jìn)??(jin)行??(xing)防?(fang)護(hù)??(hu)??，防??(fang)止??(zhi)咱??(zan)們??(men)長??(chang)期??(qi)運(yùn)??(yun)行??(xing)對??(dui)平??(ping)臺?(tai)造?(zao)成??(cheng)傷??(shang)害??(hai)??。。