flashboard

A noun referring to a board or plank placed along the top of a dam to increase its height and control water flow.

• 🇨🇳名词，指沿坝顶设置的可调节挡水板或闸板，用于提高坝高、调节水位或控制水流。

1. Dam extension board C2 formal technical

   A removable board or series of boards placed along the top of a dam to temporarily increase its height and water storage capacity.

   • The engineers installed flashboards to raise the dam's level during the rainy season.
   • Flashboards are often used to manage overflow in reservoirs.
   • Heavy rain caused the flashboards to be removed to prevent flooding.

   🇨🇳坝顶加高板