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學習快評丨qibao666888　　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??(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??(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??(she)計??(ji)指??(zhi)標??(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)??。　　中??(zhong)國祝(guo)航??(hang)天??(tian)科??(ke)技??(ji)集??(ji)團??(tuan) 李??(li)學??(xue)東??(dong)：后??(hou)續(xù)??(xu)還??(hai)有??(you)一??(yi)些??(xie)防??(fang)護??(hu)維??(wei)修??(xiu)任??(ren)務??(wu)?，但??(dan)不??(bu)是??(shi)很??(hen)多??(duo)了??(le)?，還??(hai)有??(you)別?(bie)的?(de)出??(chu)艙??(cang)任??(ren)務??(wu)?，包??(bao)括??(kuo)新??(xin)技??(ji)術??(shu)驗??(yan)證??(zheng)?，現(xiàn)??(xian)在??(zai)近??(jin)地??(di)軌??(gui)道??(dao)商??(shang)業(yè)??(ye)化??(hua)衛(wèi)?(wei)星??(xing)都??(dou)比??(bi)較?(jiao)多?(duo)了??(le)?，所??(suo)以??(yi)說??(shuo)近??(jin)地??(di)軌??(gui)道??(dao)碎?(sui)片??(pian)防??(fang)護??(hu)和??(he)衛(wèi)??(wei)星??(xing)防??(fang)護??(hu)就??(jiu)越??(yue)來??(lai)越??(yue)重??(zhong)要??(yao)了?(le)??。??。