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原標(biāo)題：中国人妻与黑人在线播放

學(xué)習(xí)快評(píng)丨qibao666888　　中??(zhong)國(guó)??(guo)工?(gong)程??(cheng)院??(yuan)院??(yuan)士?(shi)、中??(zhong)國(guó)??(guo)鐵??(tie)道?(dao)學(xué)??(xue)會(huì)?(hui)理??(li)事??(shi)長(zhǎng)??(chang)盧??(lu)春??(chun)房??(fang)指??(zhi)出?(chu)??，縱?(zong)觀??(guan)全??(quan)球??(qiu)鐵??(tie)路??(lu)調(diào)??(tiao)車??(che)技??(ji)術(shù)??(shu)的??(de)發(fā)??(fa)展??(zhan)歷??(li)程??(cheng)??，從??(cong)最??(zui)初??(chu)的??(de)手??(shou)工??(gong)操??(cao)作??(zuo)到??(dao)機(jī)??(ji)械?(xie)化??(hua)作??(zuo)業(yè)??(ye)??，再??(zai)到?(dao)自??(zi)動(dòng)??(dong)化?(hua)控??(kong)制??(zhi)??，雖??(sui)取??(qu)得?(de)顯??(xian)著?(zhu)進(jìn)??(jin)步??(bu)??，但??(dan)仍?(reng)普??(pu)遍??(bian)存??(cun)在??(zai)軟??(ruan)硬??(ying)件??(jian)成??(cheng)本??(ben)高??(gao)、系??(xi)統(tǒng)??(tong)管??(guan)理??(li)復(fù)??(fu)雜??(za)、維??(wei)護(hù)??(hu)難??(nan)度??(du)大?(da)等??(deng)現(xiàn)??(xian)實(shí)??(shi)問?(wen)題??(ti)??。??　　中??(zhong)國(guó)??(guo)工??(gong)程?(cheng)院??(yuan)院??(yuan)士??(shi)、中??(zhong)國(guó)??(guo)鐵??(tie)道?(dao)學(xué)??(xue)會(huì)??(hui)理??(li)事??(shi)長(zhǎng)??(chang)盧??(lu)春祝(chun)房??(fang)指?(zhi)出??(chu)??，縱??(zong)觀?(guan)全??(quan)球??(qiu)鐵??(tie)路??(lu)調(diào)??(tiao)車??(che)技??(ji)術(shù)??(shu)的??(de)發(fā)??(fa)展??(zhan)歷??(li)程??(cheng)??，從??(cong)最?(zui)初??(chu)的?(de)手??(shou)工??(gong)操??(cao)作??(zuo)到??(dao)機(jī)??(ji)械??(xie)化??(hua)作?(zuo)業(yè)??(ye)??，再??(zai)到??(dao)自?(zi)動(dòng)??(dong)化??(hua)控??(kong)制??(zhi)??，雖??(sui)取??(qu)得??(de)顯??(xian)著?(zhu)進(jìn)??(jin)步??(bu)??，但??(dan)仍??(reng)普??(pu)遍??(bian)存??(cun)在??(zai)軟??(ruan)硬??(ying)件??(jian)成??(cheng)本??(ben)高??(gao)、系??(xi)統(tǒng)??(tong)管??(guan)理??(li)復(fù)??(fu)雜??(za)、維??(wei)護(hù)??(hu)難??(nan)度??(du)大??(da)等??(deng)現(xiàn)??(xian)實(shí)??(shi)問??(wen)題??(ti)??。?。