目前为止任何时候我们尝试要，描述分子内的成键，我们都是利用Lewis结构。

So far we've exclusively been using Lewis structures any time we've tried to describe bonding within molecules.

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但它们在预测分子内，成键时不总是正确的，这是因为Lewis结构，实际上不是基于量子力学的。

But they're not accurate all the time in predicting bonding within molecules, and the reason for this is because Lewis structures are not, in fact, based on quantum mechanics.

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关键是精氨酸与存在于膜内的其他分子形成弱的、暂时性的键的能力。

The key is the ability of arginine to form weak, temporary bonds with some of the molecules that reside in the membrane.

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Then we're going to actually use MO theory to describe bonding within these molecules, and we'll start with homonuclear diatomic molecules.

然后我们要利用MO理论,来描述这些分子内的成键，我们要讨论同核双原子分子。

麻省理工公开课 - 化学原理课程节选

But they're not accurate all the time in predicting bonding within molecules, and the reason for this is because Lewis structures are not, in fact, based on quantum mechanics.

但它们在预测分子内,成键时不总是正确的，这是因为Lewis结构，实际上不是基于量子力学的。

麻省理工公开课 - 化学原理课程节选

So far we've exclusively been using Lewis structures any time we've tried to describe bonding within molecules.

目前为止任何时候我们尝试要,描述分子内的成键,我们都是利用Lewis结构。

麻省理工公开课 - 化学原理课程节选