研究了一种无氰的高硅铝铸件的浸锌新工艺。

A new non-cyanide zinking process for high-Si aluminum cast has been studied in this paper.

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本文对钢锯行业热处理车间盐浴炉废气中氢化氰的治理作了调查研究与方案论证。

The treatment of hydrogen cyanide in the waste gas from the salt bath furnace in the heat treatment shop of steel saw industry has been investigated and its programme has been discussed in this paper.

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对硫酸亚铁法处理电镀含氰废水进行了试验研究，探讨了硫酸亚铁除氰的原理及其去除效果。

This paper studies the treatment of electroplating CN-contained wastewater by ferrous sulfate, and investigates the elements and the effect of this treatment.

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Negative 1 plus 0 should add up to negative 1, if in fact, we're correct for the c n anion.

负一加上零应该等于负一，如果是这样，我们对于氰离子的结果就是正确的。

麻省理工公开课 - 化学原理课程节选

So, if we think about the second case here where we have c n minus, now we're talking about a molecule with a net charge of negative 1.

那么，如果我们考虑的是第二个例子,也就是氰离子，那么现在我们讨论的是一个净电荷量为负一的分子。

麻省理工公开课 - 化学原理课程节选

So, let's just figure this out for some of the examples we did, so for the cyanide anion.

那么，让我们来算一下已经,用过的一些例子的形式电荷，那么对于氰离子。

麻省理工公开课 - 化学原理课程节选