启门 meaning in English

gate opening

A comparison of the flows with different gate - opening rates shows the causes that opening the gate at a higher rate is favorable to the reduction of cavitation , gate vibration as well as the gate load fluctuation . in addition , a study has been made to show the influence of the high - speed jet flow coming downward from the narrow gate gap on the flow condition in the tunnel downstream to the gate
通过分析比较不同阀门开启速率对流动特性的影响，阐明了快速开启阀门不仅有利于减少空化空蚀也有利于减小弧门振动和启门力的脉动，此外，研究了门楣处狭窄缝隙高速射流对门后流态、压力脉动和弧门受力等方面的影响。
( 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。