So, in this case, we see that our formal charge is negative on the nitrogen, in this case it's negative on oxygen.
那么，在这种情况下，我们看到氮的形式电荷是负的，而在这种情况下，氧的是负的。
So in our first structure, we would find for the nitrogen we have a formal charge 5 minus 4 minus 2, because we're starting with 5 valence electrons, so that is a formal charge of minus 1.
那么在我们的第一个结构中，我们发现氮的形式电荷量是五减去四4,再减去二，因为我们开始有五个价电子，因此它的形式电荷量是负一。
Please get me a compressed air (Nitrogen) cylinder to charge the tyre.
请拿一个冷气（氮气）瓶给轮胎充气。
Carbon, nitrogen, and chalcogen substitution effects on 2, 1, 3-benzothiadiazole derivative: theoretical investigations of electronic, optical, and charge transport properties.
碳、氮和氧族元素取代对2,1,3 -苯并噻二唑衍生物的电子、光谱、电荷传输性质影响的理论研究。
Vent the nitrogen to atmosphere and vacuum the system for 30 minutes to remove any moisture. Now charge the system with refrigerant and introduce 5-10ml of UV dye.
将大气释放在空气中，将系统抽成真空，保持30分钟来去除所有水分。现在在系统中加入制冷剂，并加入3-10毫升的紫外线着色剂。
Vent the nitrogen to atmosphere and vacuum the system for 30 minutes to remove any moisture. Now charge the system with refrigerant and introduce 5-10ml of UV dye.
将大气释放在空气中，将系统抽成真空，保持30分钟来去除所有水分。现在在系统中加入制冷剂，并加入3-10毫升的紫外线着色剂。
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