This functional form builds in the property that larger parks provide more value at a diminishing rate, but there is an effect from congestion.

这个函数表示公园的效用以递减的幅度随公园面积的增加而增加，同时随参观人数的增加而减少。 这个函数说明了为什么要公共建设公园。

youdao

Tropical rain forests are diminishing at an alarming rate because of the human need for food and demands for timber, energy, minerals, and other resources.

由于人类的食物需要以及对木材、能源、矿物质和其他资源的需求，热带雨林数量正在以令人吃惊的速度减少。

youdao

At any rate, the size of new fields is diminishing.

无论怎样，新油田的规模都在减小。

youdao

The 2006 report--which examined the previous year and beyond--said that real GDP "will grow slowly at a diminishing rate from 2005 through 2009, " decelerating from 3.5% in 2005 to 3.1% in 2009.

FORBES: Magazine Article

He believes we need to -- that we can lower our corporate tax rate without diminishing revenues if we go after a lot of the loopholes that exist, a lot of the complexity in the tax code that exists.

WHITEHOUSE: Press Briefing

In my view, additional enforcement efforts above this point are likely to be subject to rapidly diminishing returns, both in reducing the rate of piracy and increasing copyright holder revenues.

FORBES: What is Copyright For?