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　　據(jù)??(ju)專??(zhuan)家??(jia)介??(jie)紹??(shao)??，目??(mu)前??(qian)空??(kong)間??(jian)站??(zhan)面??(mian)臨??(lin)的??(de)問??(wen)題??(ti)主??(zhu)要??(yao)來??(lai)自??(zi)空??(kong)間??(jian)碎??(sui)片??(pian)撞??(zhuang)擊??(ji)和??(he)平??(ping)臺??(tai)自??(zi)身??(shen)設(shè)??(she)備??(bei)老??(lao)化??(hua)??。?后??(hou)續(xù)?(xu)??，航??(hang)天??(tian)員??(yuan)們??(men)的??(de)出??(chu)艙??(cang)任??(ren)務(wù)??(wu)也??(ye)還?(hai)會??(hui)規(guī)??(gui)劃?(hua)這??(zhe)類??(lei)維??(wei)護(hù)??(hu)工??(gong)作??(zuo)???！　〈??(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??(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??(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??(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)??。。