河槽洪水演算 routing through channel

陡槽式溢洪道 [水利] chute spillway

槽蓄洪水演算 channel storage flood routing

坝顶泄槽溢洪道 overshot spillway

侧槽式溢洪道 [水利] side-channel spillway

洪水河槽 flood channel

正槽溢洪道 proper channel spillway

洪水河槽调蓄 flood channel storage