举例来说正负号只适用于附加量子数，例如电荷，而不是质量。

The sign reversal applies only to quantum numbers (properties) which are additive, such as charge, and not to mass, for example.

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由于沉积在静电除尘器收尘极板上的高比电阻粉尘层会产生电荷积累而形成附加电场。

The mathematical models of the charges and the additional electric field in the changed dust layer are developed by the electrostatics.

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And in this case, the tie-breaker goes to the molecule in which the negative charge is on the most electronegative atom.

而在这种情况下，我们需要进行“附加赛“,也就是看看分子中带有负的,形式电荷的原子是不是电负性最高的。

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