收益函数的英文：
revenue function

limit of maximum financial revenue
财政收入最大限量

Thrift is good revenue
节约是个好收入

The recession is eating away at their revenues.
经济衰退正在消耗他们的财政收入。

feasible limit of increase in financial revenue
财政收入增长可行限量

We allocate 10% of revenue to publicity.
我们拨出10%的收入做广告。

function requester
功能请求者

norm functional
范数泛函

The divergence of a vector function is the scalar function
矢量函数的散度是一个标量函数。

A functional is a kind of function where the dependent variable is itself a function.
泛函就是自变量本身为函数的一数函数。

The frequency response function includes an aerodynamic transfer function
频率的主函数包括主动力传递函数。