In water, the oxygen acts negative and the hydrogens act positive.

在水分子中，氧原子是带负电的，而氢原子是带正电的。

Now the hydrogens and carbons are on opposite sides of the double bond.

氢和碳在双键对立的两端。

Take methane, which is four hydrogens attached to a central carbon, as an example.

例如甲烷分子，它是由4个氢原子围绕着一个碳原子构成的。

So, we can guess that the carbon should be the central atom bonded to all the hydrogens.

因此我们能够猜测碳原子应该是中心原子，与所有的氢原子相连。

For example, a water molecule has three atoms: one oxygen and two hydrogens, and two bonds.

例如水分子有三个原子：一个氧原子，两个氢原子和两个相联点。

Group II: A Group I base oil bombarded with more hydrogens to take more impurities out of it.

第二组：A第一类基础油的轰炸更氢采取更多的杂质了。

The first is like this, where both hydrogens are on same side and both carbons are on the same side.

第一种就像这样，两颗氢都在同一边，两颗碳也在同一边。

The other two activated hydrogens still can take place mannich reaction with amine and formaldehyde.

余下的两个活性氢位置仍然能与胺类、醛类发生曼尼期碱的缩合反应.

The second way is like this. Now the hydrogens and carbons are on opposite sides of the double bond.

第二种方式像这样。氢和碳，在双键对立的两端。

As the starshine intensified , it eventually stripped electrons from the hydrogens, ionizing the atoms.

一旦星光增强,氢原子中的电子最后就会被打掉, 形成离子.