当带负电和带正电的粒子流相遇时，就会形成一条连接云层和地面的完整通道。

When the negatively and positively charged streams meet, a complete channel connecting the cloud and the ground is formed.

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中心有个带正电的原子核。

It has a nucleus at the center charged positively.

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当它们穿行到地球的表面时，地表成了带正电的带电体。

When they travel to the surface of the Earth, the surface becomes positively charged.

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So, what we can do is try using the classical description of the atom and see where this takes us.

用经典力学描述原子看看怎么样,我们要考虑的是一个,带正电的粒子和。

麻省理工公开课 - 化学原理课程节选

And then I am going to take sodium gas and I am going to make this into sodium gas plus electron.

接下来，将气态的钠,转化为,带正电的气态钠。

麻省理工公开课 - 固态化学导论课程节选

If instead we had a positive ion, a cation, what we would have to do is subtract 1.

如果我们有一个带正电的离子，一个正离子，那我们就需要再减去一个。

麻省理工公开课 - 化学原理课程节选