spillway gate

• 溢洪闸,溢水闸

spillway gate的用法和样例：

例句

1. Valve or gate that controls rate of water flow through a sluice.
   控制通过水闸的水速的阀门。
2. We find that the people gathered together at the street or square before the water gate.
   我们发现人们聚在水闸大门前的街头或者广场。