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

只有两碳原、一羟基以及一些氢原。

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

抗坏血酸与酶的结合，使胶原中的脯氨酸残基上增加了羟基。

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

剩下的是含四碳的，都是饱和的，依附在羟基上。

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

他的拥有很长的链叫做高聚合物，一的末端都有一氢氧基对，叫做羟基组。

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

有时，一中的羟基很乐意与另一中的氢结合， 形成水。

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

剩下的是有四碳的，碳都是饱和的，并连接到一羟基上。

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!

它与 HOPDMS 产生反应，通过打断一链接末尾的羟基组，使得两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，其特征是一碳（C）原与一氧（O）原双键结合，并与一羟基（-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-羟基丁酸虽说也是酮体，但却不是酮酸，因为它的酮基团被还原成了羟基。

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.

如果你留心的话，你就会知道醇是带有羟基的有机化合物， 如果你将它们脱氢， 羟基就会转化为羰基， 它们就会变成脱氢的醇醛。

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，含有氢氧化合物的东西都是酒精，也就是我们所熟知的氢氧基，粘着在饱和的碳原上，也就是意味着所有的电都粘着在另外的东西上。

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.

它用乙酰基取代了水杨酸的一羟基——氧和氢与碳结合——乙酰基是两碳，一与氧双键结合，另一与氢结合。

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.

如果它是一六碳链， 上面有一羧酸， 另一碳上有一醇，我们的名字必须做两件事：确定羟基的存在并确定它的位置。