这三种成分相互交织，直接形成共价键。
These three components are interwoven, and direct covalent linkages.
配位共价键是其中两个键合电子均来自该键所涉及的原子之一的键。
A coordinate covalent bond is one where both bonding electrons are from one of the atoms involved in the bond.
共价催化涉及底物与活性位点中的残基或与辅因子形成瞬时共价键。
Covalent catalysis involves the substrate forming a transient covalent bond with residues in the active site or with a cofactor.
这是平均共价，它是极性共价。
为什么要称它为极性共价呢？
所以你看得出极性共价就是，趋向离子键的。
So you can see that polar covalency is a tendency towards ionic bonding.
但对于共价键就没这么简单了。
所以这是氟化氢中的氢氟共价键。
而是用的同核，嗯，这是完全共价的。
在共价键联中，原子共有电子。
什么是非平均共价的极端？
他创造了共价键这一概念。
特别地，今天我们要专门讲一讲共价键。
So specifically, today we're going to talk about covalent bonds.
所以我们明白，这是化合物中的共价键。
Just so that we are clear, this is the bond in this compound.
这证明有每摩尔435焦的，的共价能。
And this turns out to have a bond strength of 435 kilojoules per mole.
你得到氟化氢的共价能。
抗体能通过共价键结合在脂质体颗粒上。
Antibody can be linked to liposome particles by covalent binding.
他有许多著名的发现，其中一个便是共价键。
He's famous for a lot of things, one of which is covalent bonding.
共价键的定义是什么？
我想象它们的样子，通过共价键结合的分子链。
I'm imagining something like, covalently bonded chains that have links between them.
而关于共价键最关键的一点就在于共用的概念。
And the key word for covalent bonds is the idea of being Shared.
然后鲍林更进一步，说这是一个完全的共价成分。
And so Pauling went further and said this is the purely covalent component.
需进一步深入研究方能解决共价键的起源问题。
Further study is needed before the origin of the covalent bond can be considered a settled question.
这是氢的同原子的共价能,在纯氢中，我们有完美的共价键。
This is the homonuclear bond energy for hydrogen in pure hydrogen. There we have perfect covalency.
如果我用这个测量表测氢分子，完全平均共价的分子。
If I look at a homonuclear molecule such as molecular hydrogen, this is perfect sharing.
那么，这就是我们所应该想到的基本思路，在考虑共价键时。
So, that's basically the idea of how we are going to be thinking about covalent bonds.
当“航行者”号完工的时候，它身上的零件共价值二百万美元。
When Voyager was finished, it had two million dollars' worth of parts in it.
在欧元区成员里的各个央行的黄金总共价值大约3750亿欧元。
The gold in the central Banks of Eurozone members together is worth some 375 billion euros.
因此在中间，这些键，一方面是离子性，另一方面是完美的共价键。
So, somewhere in between, the bonds are, we have a range of bonds between ionic on the one hand, and perfectly covalent on the other hand.
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