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學(xué)習(xí)快評(píng)丨qibao666888　　在??(zai)海??(hai)底??(di)隧??(sui)道??(dao)實(shí)??(shi)現(xiàn)??(xian)貫??(guan)通??(tong)后??(hou)??，盾??(dun)構(gòu)??(gou)機(jī)??(ji)要??(yao)再??(zai)向??(xiang)前?(qian)空??(kong)推??(tui)約??(yue)463米??(mi)??，到??(dao)達(dá)??(da)指??(zhi)定??(ding)位??(wei)置?(zhi)后??(hou)再??(zai)進(jìn)??(jin)行??(xing)拆??(chai)機(jī)??(ji)??。??這??(zhe)也?(ye)將?(jiang)是??(shi)國(guó)??(guo)內(nèi)??(nei)首??(shou)次??(ci)實(shí)??(shi)施??(shi)超??(chao)大??(da)直??(zhi)徑??(jing)盾??(dun)構(gòu)??(gou)海??(hai)底??(di)洞??(dong)內(nèi)??(nei)拆??(chai)解??(jie)???！　∩??(shang)午??(wu)??，隨??(sui)著??(zhe)最?(zui)后??(hou)一??(yi)層??(ceng)巖??(yan)體??(ti)成??(cheng)功??(gong)破??(po)除??(chu)??，“永??(yong)平??(ping)號(hào)??(hao)”盾??(dun)構(gòu)??(gou)機(jī)??(ji)順??(shun)利??(li)露??(lu)出??(chu)??，意??(yi)味??(wei)著??(zhe)汕??(shan)頭??(tou)灣??(wan)海??(hai)底??(di)隧??(sui)道??(dao)正?(zheng)式??(shi)貫??(guan)通??(tong)??。??盾??(dun)構(gòu)??(gou)機(jī)??(ji)的??(de)直??(zhi)徑??(jing)達(dá)??(da)到??(dao)14.57米??(mi)??，相??(xiang)當(dāng)??(dang)于??(yu)5層??(ceng)樓??(lou)左??(zuo)右??(you)的??(de)高?(gao)度??(du)??。。