During alcoholic fermentation acetaldehyde acts as a hydrogen acceptor instead of oxygen.是什么意思？

During alcoholic fermentation acetaldehyde acts as a hydrogen acceptor instead of oxygen.

在这个过程中乙醛取代了氧作为氢的受体.

during

prep. 在…的时候，在…期间，当…之时，其间；

例句
...the accrual of funds used during construction.
建设过程中资金的累积

alcoholic

adj. 酒精的，含酒精的，酒精中毒的；n. 酗酒者，酒鬼，酒精中毒者；

例句
...the serving of alcoholic drinks.
供应含酒精的饮料

fermentation

n. 发酵，激动，纷扰；

例句
During alcoholic fermentation acetaldehyde acts as a hydrogen acceptor instead of oxygen.
在这个过程中乙醛取代了氧作为氢的受体.

acetaldehyde

n. 乙醛，醋醛；

例句
During alcoholic fermentation acetaldehyde acts as a hydrogen acceptor instead of oxygen.
在这个过程中乙醛取代了氧作为氢的受体.

acts

n. 行为( act的名词复数 )，动作，（一）幕，（搭档）演出短节目的演员；v. 行动( act的第三人称单数 )，做，表演，起作用；

例句
He's taking a dangerous drug: it acts very fast on the central nervous system...
他正在服用一种危险的药物：这种药物能很快影响到中枢神经系统。

as

adv. 同样地，一样地，例如；prep. 作为，以…的身份，如

例句
As far as I can recall, Patti was a Smith.
我记得帕蒂是姓史密斯的。

hydrogen

n. <化>氢；

例句
They'd have a lot of hydrogen sulfide gas bound up in their cells.
他们的牢房里有大量的硫化氢气体。

acceptor

n. 接受者，接收器，受主，被诱物；

例句
In aerobic systems, oxygen is the terminal electron acceptor and is reduced.
在需氧体系中, 氧是末端电子接受体并且被还原.

instead

adv. 代替，顶替，反而，反倒；

例句
But instead of ending in agreement, the talks broke up in acrimony at the end of the week.
但是到这个周末，谈判非但没有达成协议反而在唇枪舌剑中不欢而散。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

oxygen

n. [化]氧，氧气；

例句
Blood is the medium in which oxygen is carried to all parts of the body...
血液是将氧气输送到人体各个部位的媒介。