A.防雷擊B.防盜C.防火D.防野獸
A.水情B.雨情C.汛情D.災(zāi)情
A.實(shí)時(shí)數(shù)據(jù)處理B.常規(guī)數(shù)據(jù)處理C.水務(wù)計(jì)算D.水帳計(jì)算