sluice board

例句：

1. 1. The engineer designed a sluice board to control the flow of water.
   工程师设计了一个闸门板来控制水流。
2. 2. The construction workers used a sluice board to clear the riverbed.
   建筑工人使用一个闸门板来清理河床。
3. 3. The sluice board was essential for maintaining the safety of the flooded area.
   闸门板对于维护洪水区域的安全至关重要。