A.項(xiàng)目經(jīng)理B.生產(chǎn)經(jīng)理C.技術(shù)負(fù)責(zé)人D.安全總監(jiān)
A.圍護(hù)墻→圍檁→支撐B.圍檁→支撐→>維護(hù)墻C.支撐→維護(hù)墻→圍檁D.支撐一圍檁→維護(hù)墻
A.濾水B.隔水C.降水D.回灌