The negative carbon brush damage often occurs in operation.

运行中负极电刷易受损伤。

youdao

In the slab, the negative carbon segregation region and positive segregation in the center are observed simultaneously.

在板坯中碳的偏析同时存在负偏析区和中心正偏析。

youdao

So we end up with a formal charge on carbon of negative 1.

因此最终我们得到碳的形式电荷量是负一。

麻省理工公开课 - 化学原理课程节选

And what you find out if you do these calculations, is that you have a negative 1 for your formal charge on nitrogen, you have a negative 2 for your formal charge on carbon, and you have a positive 2 for your formal charge on sulfur.

而如果你做了这些计算会发现，氮的形式电荷量为负一，碳的形式电荷量为负二，而硫的形式电荷量为正二。

麻省理工公开课 - 化学原理课程节选

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