drawdown

詳細解釋：

draw.down

n.（名詞）
The act, process, or result of depleting:
耗盡：耗盡的行為、過程或結果：
例句：
the drawdown of oil supplies; a drawdown of investment capital.
油供應的耗盡；投資資本的耗盡

A lowering of the water level in a reservoir or other body of water.
池降：水庫或其它水體的水位降低