下游水位 meaning in Chinese

downstream level
level of subsoil water
level of tail water
lower pool elevation

( 4 ) the running state and hydraulic property of the hydraulic automatic tilting gate with connecting lever and rolling wheel were analyzed . the open - door curve , start - up water level and shutdown water level were ascertained , then the influence of lower reaches of a river to the running of a tilting gate was analyzed
( 4 )析阐述了连杆滚轮式水力自动翻板闸门的工作状态与水力特性，推求了闸门的开门曲线、启门水位和回关水位，并分析了下游水位对翻板闸门运行的影响。