In a natural system, a certain amount of recharge comes in and a certain amount of water naturally flows out through springs, streams, and lakes.

在个自然的水体系中，会有的补给水流进来，也会有的水自然地流出进入泉水、溪流和湖泊。

Suki's work that started in 1960s allowed us to quantitatively and predicatively, simulate the behavior of the climate system.

Suki 的工作始于20世纪60年代，这让我们能和预测地模拟气候系统的行为。

We can then use them qualitatively and quantitatively to solve problems.

然后我们可以性地使用它们来解决问题。

To express the conservation of mass qualitatively and quantitatively?

性和地表达质守恒？

Americans have progressively defined the process of plant growth and reproductive development in quantitative terms.

美国人已经逐步地界了植物生长和繁殖过程。