午夜免费啪视频

　　中??(zhong)國??(guo)工??(gong)程??(cheng)院??(yuan)院??(yuan)士??(shi)、中??(zhong)國??(guo)鐵??(tie)道??(dao)學(xué)??(xue)會??(hui)理??(li)事??(shi)長??(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?(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??(shi)問??(wen)題??(ti)??。?　　中?(zhong)國??(guo)工?(gong)程??(cheng)院??(yuan)院??(yuan)士?(shi)、中??(zhong)國??(guo)鐵??(tie)道??(dao)學(xué)??(xue)會??(hui)理??(li)事??(shi)長??(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??(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??(shi)問??(wen)題??(ti)??。??PZBVKEUMBKqibao666888　　zhong ??(zhong)guo ??(guo)gong ??(gong)cheng ??(cheng)yuan ??(yuan)yuan ??(yuan)shi ??(shi)、zhong ??(zhong)guo ??(guo)tie ??(tie)dao ??(dao)xue ??(xue)hui ??(hui)li ??(li)shi ??(shi)chang ??(chang)lu ??(lu)chun ?(chun)fang ??(fang)zhi ??(zhi)chu ??(chu)??，zong ??(zong)guan ??(guan)quan ??(quan)qiu ?(qiu)tie ?(tie)lu ??(lu)tiao ??(tiao)che ??(che)ji ??(ji)shu ??(shu)de ??(de)fa ??(fa)zhan ??(zhan)li ??(li)cheng ?(cheng)??，cong ??(cong)zui ??(zui)chu ??(chu)de ??(de)shou ??(shou)gong ??(gong)cao ??(cao)zuo ?(zuo)dao ??(dao)ji ??(ji)xie ??(xie)hua ??(hua)zuo ??(zuo)ye ??(ye)??，zai ??(zai)dao ??(dao)zi ??(zi)dong ?(dong)hua ??(hua)kong ??(kong)zhi ??(zhi)??，sui ??(sui)qu ??(qu)de ??(de)xian ??(xian)zhu ??(zhu)jin ??(jin)bu ??(bu)??，dan ??(dan)reng ??(reng)pu ??(pu)bian ??(bian)cun ??(cun)zai ??(zai)ruan ??(ruan)ying ??(ying)jian ??(jian)cheng ??(cheng)ben ??(ben)gao ??(gao)、xi ??(xi)tong ??(tong)guan ??(guan)li ??(li)fu ??(fu)za ??(za)、wei ??(wei)hu ??(hu)nan ??(nan)du ??(du)da ??(da)deng ??(deng)xian ??(xian)shi ??(shi)wen ??(wen)ti ??(ti)??。?　　zhong ?(zhong)guo ??(guo)gong ?(gong)cheng ??(cheng)yuan ??(yuan)yuan ??(yuan)shi ?(shi)、zhong ??(zhong)guo ??(guo)tie ??(tie)dao ??(dao)xue ??(xue)hui ??(hui)li ??(li)shi ??(shi)chang ??(chang)lu ??(lu)chun ?(chun)fang ??(fang)zhi ??(zhi)chu ??(chu)?，zong ?(zong)guan ??(guan)quan ??(quan)qiu ?(qiu)tie ??(tie)lu ??(lu)tiao ??(tiao)che ??(che)ji ??(ji)shu ??(shu)de ??(de)fa ??(fa)zhan ??(zhan)li ??(li)cheng ??(cheng)?，cong ??(cong)zui ?(zui)chu ??(chu)de ??(de)shou ??(shou)gong ??(gong)cao ??(cao)zuo ??(zuo)dao ?(dao)ji ??(ji)xie ??(xie)hua ??(hua)zuo ??(zuo)ye ??(ye)?，zai ??(zai)dao ??(dao)zi ??(zi)dong ??(dong)hua ??(hua)kong ?(kong)zhi ??(zhi)?，sui ??(sui)qu ??(qu)de ??(de)xian ??(xian)zhu ??(zhu)jin ??(jin)bu ??(bu)?，dan ??(dan)reng ??(reng)pu ??(pu)bian ??(bian)cun ??(cun)zai ??(zai)ruan ??(ruan)ying ??(ying)jian ??(jian)cheng ??(cheng)ben ??(ben)gao ??(gao)、xi ?(xi)tong ??(tong)guan ??(guan)li ??(li)fu ??(fu)za ?(za)、wei ??(wei)hu ??(hu)nan ??(nan)du ??(du)da ??(da)deng ??(deng)xian ??(xian)shi ??(shi)wen ??(wen)ti ??(ti)??。??