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So if we add them all up, there should be no net charge on the molecule, if the molecule is neutral.

因此如果我们把它们都加起来，这个分子上应该没有净电荷，如果这个分子是中性的话。

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The center of excess negative charge on all of the dipoles is at the very center of the molecule.

多出来的键,的负电荷中心都集中在,分子的正中间。

麻省理工公开课 - 固态化学导论课程节选

He could divide all of that by the absolute value of the charge of the positive particle, all over the mass of the positive particle.

他可以把这整个,除以正电粒子的,电荷绝对值除以，正电粒子的质量。

麻省理工公开课 - 化学原理课程节选

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