created sense approved 下闸/下閘 · xiàzhá · lower gate
下闸 / 下閘
xiàzhá
lower gate
to lower a sluice gate to regulate or stop the flow of water
当水位超过警戒线时，管理人员必须立即下闸。
created sense approved 下闸/下閘 · xiàzhá · outflow sluice
下闸 / 下閘
xiàzhá
outflow sluice
a sluice gate situated at the lower part of a dam or reservoir used for discharging water
由于泥沙淤积，这个水库的下闸已经无法正常开启。