drawdown

draw.down

n.（名词）
The act, process, or result of depleting:
耗尽：耗尽的行为、过程或结果：
例句：
the drawdown of oil supplies; a drawdown of investment capital.
油供应的耗尽；投资资本的耗尽

A lowering of the water level in a reservoir or other body of water.
池降：水库或其它水体的水位降低