Just two or three carbon atoms, a hydroxyl group, and some hydrogens.

只有两个或三个碳原子、一个以及一些氢原子。

The incorporation of Ascorbic acid with the enzyme, adds hydroxyl group on proline residue in collagen.

抗坏血酸结合，使胶原中脯氨酸残上增加了。

And what's left are molecules with four carbons, each of which is saturated, and attached to a hydroxyl group.

剩下是含四个碳分子，每个都是饱和，依附在上。

Its molecules come in long chains, called polymers, and on each end there's a hydrogen-oxygen pair, called a hydroxyl group.

他分子拥有很长链叫做高分子聚合物，每一个分子末端都有一个氢氧对，叫做组。

Sometimes a hydroxyl group from one molecule is happy to join up with a hydrogen from another, forming water.

有时，一个分子中很乐意另一个分子中氢结合， 形成水。

And what’s left are molecules with four carbons, each of which is saturated, and attached to a hydroxyl group.

剩下是有四个碳分子，每个碳都是饱和，并连接到一个上。

It reacts with HOPDMS in such a way that it breaks off a hydroxyl group from one end of each chain, so that two chains can join together!

它 HOPDMS 产生反应，通过打断每一个链接末尾组，使得两个链接可以结合在一起！

Carboxylic acids are a type of organic compound characterized by a carbon (C) atom doubly bonded to an oxygen (O) atom and singly bonded to a hydroxyl group (-OH) .

羧酸是一种有机化合物，其特征是一个碳（C）原子一个氧（O）原子双键结合，并一个（-OH）单键结合。

Beta hydroxybutyric acid on the other hand, even though it's still one of the ketone bodies, isn't technically a ketoacid since its ketone group has been reduced to a hydroxyl group.

而β-丁酸虽说也是酮体，但却不是酮酸，因为它酮团被还原成了。

If you were paying attention, you learned that alcohols are organic compounds with hydroxyl groups, if you dehydrogenate them, the hydroxyl converts to a carbonyl and they become dehydrogenated alcohols or aldehydes.

如果你留心话，你就会知道醇是带有有机化合物， 如果你将它们脱氢， 就会转化为羰， 它们就会变成脱氢醇或醛。

Technically speaking, an alcohol is any compound that contains a hydrogen-oxygen pair, known as a hydroxyl group, that's bound to an atom of carbon that's saturated, meaning all of its electrons are bound to something else.

严格说来，含有氢氧化合物东西都是酒精，也就是我们所熟知氢氧，粘着在饱和碳原子上，也就是意味着所有电子都粘着在另外东西上。

It replaced one of salicylic acid's hydroxyl group — that's an oxygen and hydrogen bonded to a carbon — with an acetyl group, which is two carbons, one double-bonded to an oxygen and the other bonded to three hydrogens.

它用乙酰取代了水杨酸一个——氧和氢碳结合——乙酰是两个碳，一个氧双键结合，另一个三个氢结合。

If it's a six carbon chain with a carboxylic acid on it and an alcohol on one of the other carbons, our name has to do two things: identify that the hydroxyl group is there and identify where it is.

如果它是一个六碳链， 上面有一个羧酸， 另一个碳上有一个醇，我们名字必须做两件事：确定存在并确定它位置。