flood gun读数电子枪floodv.淹没；充满n.洪水flood waterlogzing situation洪涝情势flooded continuous dissolver液泛连续式溶解器floods and drought character旱涝特征flooding prevention and cure水害防治flood risk forecasting system洪水灾情预报系统flood relief flume over canal渠上排洪槽flood-in fry from the river灌江纳苗flood discharge with pressure有压泄洪flood discharge atomized rain泄洪雾雨flood operation with forecast预报调度