耗竭

The analytical solutions for the stead state equations of four wave mixing with an arbitrary complex coupling constant are given without the undepleted pump approximation.

在无泵浦非耗竭近似下，给出了复耦合系数为任意值时稳态四波混频耦合波方程组解析解。

A tax advantage is also available to holders of most depletive assets—those which are used up, or depleted, over a period of time—like oil, natural gas, uranium, or coal.

那些折耗性持有者也享有纳优惠，如石油、天然、煤这类会在一定期间里被耗竭，被称为折耗性。