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He said that the percent ionic character, and this is within a bond, not for a compound, for a covalent bond.
他提到离子百分数，是指一根键中，并非一个分子中。
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Well, if this bond has completely identically equal sharing of electrons, then this bond will be nonpolar.
如果一根键连的两个原子,对键上的电子吸引程度是完全等价的，那么这根键是非极性的。
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And so both of these lobes together constitute a pi bond.
上下两片叶一起组成了一根π键。
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We have one, two, we have four bonding domains.
我们发现一共生成了1，2，3，4根键。
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And ultimately we are going to get to this state where we are going to form a bond.
最终我们将得到这个状态,即形成一根键。
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We only have the one bond so the actual HF molecule is polar, it has a net dipole.
但HF中只有一根键,所以分子也是极性的而甲烷中有一个网状偶极。
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And now you have a tetrahedron with equal length bonds.
四面体型的四根等长的键。
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If it's symmetric, that means that each bond has exactly the same energy.
这意味着如果他们对称，那么每根键的能量是一样的。
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These two are going to smear laterally.
这两根键只能侧面重叠。
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That gets us the first one.
这是氮气的第一根键。
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I formed a bond, an ionic bond.
生成了一根键，离子键。
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