Is just a chemical reaction that compels animals to breed.

不过是让动物繁衍后代的化罢了。

It's actually to start a chemical reaction.

而是为了引发化。

Other aerosols can host chemical reactions that damage the ozone layer.

其他气溶胶可以主导伤害臭氧层的化。

Lots of chemical reactions occur here such as respiration.

很多化都发生这里，如呼吸作用。

The blue hue is caused by chemical reactions in plankton which produced the blue light.

蓝色荧光是由浮游生物生化生的。

The teacher carefully explained each facet of the chemical reaction.

老师仔细解释了化的各个方面。

The ability to study chemical reactions stage by stage will be equally important.

能够研究化中的每一步同样很重要。

No chemical reaction occurs when tape is pressed onto a surface.

当胶带被铺面上，没有化的发生。

And this chemical reaction got a great reaction from the students.

这个化引起了生们的强烈响。

In science, a catalyst is a substance that accelerates a chemical reaction.

科中，催化剂是一种加速化的物质。

And they tracked heat flow through the material, to monitor chemical reactions.

然后对通过这一材料的热流进行追踪，以监测化。

The electricity in our bodies is created by chemical reactions between cells.

我们体内的电是由细胞间的化生的。

DAC technology uses chemical reactions to remove carbon dioxide from the air.

直接空气碳捕获法技术能够利用化去除空气中二氧化碳。

The cell cytoplasm is the site of the cell's chemical reactions.

细胞质是细胞进行化的场所。

One enzyme can activate a thousand of these chemical reactions in an hour.

一个酶每小时 可激发一千个这种化。

Inside of that flame, there can be hundreds of chemical reactions taking place.

一苗火焰中，可能有上百种化正进行。

These compounds are used in the chemical reactions that we use to make plastic.

这些化合物会制作塑料的化中被用到。

And when all three mix together, the extremely hot chemical reaction lets off oxygen.

当三者融合，将发生化，发热生氧气。

Because essentially the whole metabolism, all the chemical reactions in your body, are accelerated.

“因为从本质上说，体内整个新陈代谢和所有的化都加速。”

Enzymes are proteins that living things use as catalysts, to speed up chemical reactions.

酶是生物用作催化剂的蛋白质，以加速化。