gravity dam

短语

词形变化

gravity dams 复数 gravity dams

释义与例句

n.
  1. 1.

    An impoundment dam that is wider at the base than at the top, and which uses the massive weight of the dam's mass to withstand the force of water being stored behind the dam in its reservoir.

词源

From gravity + dam. From using the weight of the dam to withstand the force of water being impounded.

来源：wiktionary