n.水閘

They regulate the flow of water by the sluice gate. 他們用水閘門(mén)控制水的流量。

Another sluice gate keeps floodwater out of the lake. 另一閘門(mén)使洪水致流入湖內(nèi)。

They regulate the flow of water by the sluice gate . 他們用水閘門(mén)控制水的流量。

They open the sluice gates of reservoir. 他們打開(kāi)水庫(kù)的閘門(mén)。

As soon as the sluice gate was opened,the water surged in. 水閘門(mén)一開(kāi)，水便一下子涌了出來(lái)。