A proton is an elementary particle of matter that possesses a positive charge.

质子是带正电荷的物质的基本粒子。

《柯林斯英汉双解大词典》

This charge is a positive charge.

这个电荷是正电荷。

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It will be a particle with a positive charge and a positive mass.

它将是一个带着正电荷和正质量的粒子。

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President Obama denied the charge. The summit host,Trinidad and Tobago Prime Minister Patrick Manning, praised President Obama for a positive attitude, which he said set a congenial tone that ensured success at the gathering.

VOA: standard.2009.04.19

And so we have a positive charge in the nucleus which is given by the number of protons.

在原子核上,有很多质子聚集而形成的正电荷。

麻省理工公开课 - 固态化学导论课程节选

You've got a positive charge here with a negative charge around it.

正电荷在这儿,负电荷在周围。

麻省理工公开课 - 固态化学导论课程节选

The gel coats the interior of the vessel with a plastic compound that has a net positive charge.

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These ions, like the hydrogen ions that are the heart of every acid, have a single positive charge.

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That means its nucleus has a stronger positive charge and that, in turn, means the electrons orbiting the nucleus are more attracted to it and travel faster, at roughly 60% of the speed of light, compared with 35% for the electrons orbiting a tin atom.

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