These are of two varieties, known as single and double bonds.

化学键有两种，单键和双键。

Here you might have those same bonds.

静止时 不仅有这些化学键。

Consider two small solids which are comprised of six atomic bonds each.

想象两个小块的固体，这两个固体都有六个化学键。

When heated, the paste develops chemical bonds with living tissue on both sides.

当受热时，糊状物与两侧的活组织形成化学键。

Normally, different molecules are connected by covalent chemical bonds between their atoms.

通常情况下，不同的分子通过原子间的共价化学键相连接。

Photosynthesis takes sunlight and stores solar energy in chemical bonds.

的光作用吸收了太阳能并把它储化学键中。

In part, these PFAS are effective because their chemical bonds are incredibly strong.

某种程度上，这些 PFAS 有效的原因是因为它们的化学键非常牢固。

To put it chemistry specific, it has two unpaired electrons, which really want to form chemical bonds.

具体到化学，它有两个不成对的电子，它们真的想形成化学键。

And also like graphite and diamond, the different forms that they take are all about bonding differences.

与石墨和金刚石一样，化学键的差异也会导致不同的网状结构。

Because it's an amorphous solid with bonds of varying strength, glass doesn't have an exact melting point.

因为玻璃是一种由强度不定的化学键链接成的非晶固体，它没有确定的熔点。

Finally, DNA polymerase fills the gaps on both sides of the union and DNA ligase seals the bond.

最后，DNA聚酶会填补两侧连接处的空白；DNA连接酶会将化学键连接起来。

And that's the way that the bonds, when they freeze, they actually force the water to have a fixed side.

这就是化学键，当它们冻结时，它们迫使水有固定的一面。

Right – because gum actually creates a chemical bond – which means when one thing joins firmly to another.

对，因为口香糖实际上会和其他与之接触的物体之间产生化学键，两者会很紧密地粘连起来。

Altering a single chemical bond can shift a scent from sweet to rancid.

改变单个化学键可以将味从甜味转变为腐臭味。

So, the researchers developed a library of slightly-tweaked possible molecules that might be slower to dissolve a crosslinked bond.

因此，研究人员开发了一个可稍作调整的分子库，这些分子可以使交联化学键溶解得更慢。

The chemical bonds on these compounds are extremely strong and they don't break apart very easily.

这些化物上的化学键非常牢固，不易断裂。

People who love their caffeine love that feeling of alertness, that artificial brain chemistry bond is creating.

喜欢咖啡因的人喜欢那种警觉的感觉，这种人工大脑化学键正创造。

The energy used to exist as part of chemical bonds in the acid and the base.

能量曾经作为酸和碱中化学键的一部分。

But if you’re studying chemical bonds, you might need the electron cloud model to know where the electrons are.

但如果你正研究化学键，你可能需要电子云模型来了解电子的位置。

All that energy locked away in chemical bonds and then released as heat to make my aching frozen fingers.

所有的能量都被锁化学键中， 然后以热量的形式释放出来， 让我的手指冻痛。