The salivary protein can be chemically synthesized; stored as a powder; and dissolved in water.

唾液蛋白质可以学；以粉末形式储存；并溶于水。

One of the most effective is benzoyl peroxide, a chemical compound that's really good at killing bacteria.

氧苯甲酰是最有效的药之一，这种学对于杀菌非常有效。

Now C9 is a type of hydrocarbon resin chemically manufactured from oil and is toxic to humans.

C9是一种碳氢树脂，由石油学，对人体有害。

At the same time, endorphins, another chemical to fight stress, are released by the pituitary gland.

同时, 另一种对抗压力的学激素内啡肽, 由脑下垂体释放。

He is now turning into his real form, a kind of chemosynthetic large worm.

他现在正在变他的真实形态， 一种学的大型蠕虫。

In 1853, a French chemist managed to chemically synthesize the compound, creating a substance called acetylsalicylic acid.

1853 年， 一位法国学家功地学了这种，产生了一种叫做乙酰水杨酸的质。

For example, pure sulfuric acid, which is used in paper mills, iron and steel making, industrial cleaner, and chemical synthesis.

例如用于造纸厂、钢铁制造、工业清洁剂和学的纯硫酸。

A team from Dundee university says the chemical compound will protect people from disease and prevent its spreading all in a single dose.

邓迪大学的团队称，这种学将保护人们免于该疾病，并能预防疟疾的传播，且只需一剂即可。

However, paradichlorobenzene is also listed as a compound that's thought to be a human carcinogen, though there haven't been any major human studies.

然而，尽管目前还没有主流的对人的研究，但是二氯苯也同样被列为学质，它也被认为是人类致癌。

And the bacteria, well the bacteria kind of feed the tube worms through chemosynthesis, remember, that chemical reaction I described earlier.

细菌，嗯，细菌通过学喂养管虫，记住，我之前描述的学反应。

Doctors, patients and biotechnology companies are interested in the information content of genes, the argument runs, not the incidental details of their chemical composition.

他们还认为，医生、患者以及生技术公司感兴趣的是基因的信息内容，而不是学基因所附带的信息。

Around these vents, communities of organisms have evolved that rely on chemosynthesis--a process where bacteria derive energy from chemical reactions instead of sunlight.

在这些喷口周围，生群落的进依赖于学——细菌从学反应而不是阳光中获取能量的过程。

At the mid--ocean ridges, hydrothermal vents support unique ecosystems, where organisms derive energy from chemicals spewed out of the vents, a process known as chemosynthesis.

在大洋中脊，热液喷口支撑着独特的生态系统，生体从喷口喷出的学质中获取能量，这一过程被称为学。

This was a living system based not on photosynthesis but on chemosynthesis, an arrangement that biologists would have dismissed as preposterous had anyone been imaginative enough to suggest it.

这种生命体系的基础不是光作用，而是学。要是哪个想像力丰富的人提出这种安排，生学家们肯定会认为是很荒谬的。

These bacteria that live inside the tube worms, the tube worms provide them with hydrogen sulfide and carbon dioxide. And the bacteria, well the bacteria kind offered the tube worms through chemosynthesis, remember, that chemical reaction I described earlier.

这些生活在管虫体内的细菌，管虫为它们提供硫氢和二氧碳。还有细菌，嗯，这种细菌通过学提供了管虫，记住，我之前描述的学反应。