For instance, to maximize the hydrogen fluoride production by adding or removing some of the substances.

例如，通过添加或去除某些物质限度地提高氟化氢的产量。

Let's do this for hydrogen fluoride, or HF, an integral part of the process of refining gasoline.

让我们对氟化氢 (HF) 执行此操作， 它是精炼汽油过的一个组成部分。

So what we're trying to figure out is how much of the hydrogen and the fluorine will react to form hydrogen fluoride under these conditions.

所以我们要弄清楚的是在这些条件下有多少氢和氟会成氟化氢。

At the same time, the reactants are combining to form products like nitrogen and hydrogen to make ammonia, or hydrogen and fluorine to make hydrogen fluoride.

同时，物结合成产物， 如氮和氢生成氨，或氢和氟生成氟化氢。

But, wouldn't it be a lot more helpful if you knew how much pressure you'd have to add to produce the exact amount of ammonia you needed, or how much hydrogen fluoride it takes to refine a certain volume of gasoline.

但是，如果您知道必须增加多少压力才能生产出您需要的确切数量的氨，或者精炼一定体积的汽油需要多少氟化氢，这不是更有帮助吗？