Positrons are the antimatter counterparts to electrons.

正的反物质。

When electrons collide with the foil, positrons are formed in the flow.

当与金属箔相撞时，正在流动中形成。

Next, a magnet comes into play and spreads positrons and electrons in different directions.

接下来，一磁铁开始发挥作用，把正和分散到不同的方向。

A positron for example is just like an electron but it has positive charge.

比如一正，就一，但带有一单位正荷。

And when an electron and a positron or a proton and antiproton meet, they annihilate.

当一与正相遇，或者一质与反质相遇，它们就会抵消。

One possible explanation is that these excess positrons are a by-product of dark matter interactions.

这些多余的正暗物质间相互作用的副产物。

You wrote that article on the positron.

你写过关于正的那篇文章。

The positron cannon is ready to fire, and you're safe.

正炮已准备好开火 你安全了。

I'm sorry, we have a positron cannon?

抱歉 我们还有正炮？

Its new results show more positrons than expected.

最新观测结果显示，这些粒带的正要比想象的多。

The positron cannon is ready to fire.

正炮准备好了。

It begins to decay and emit positrons, aka, anti electrons.

它开始衰变并释放正，也就反。

The collision first forms a neutron, and then a positron.

碰撞首先生成一中，然后生成一正。

Oppenheimer's early research was devoted in particular to energy processes of subatomic particles, including electrons, positrons, and cosmic rays.

奥本海默早期的研究特别致力于亚原粒，包括、正和宇宙射线的能量过程。

Thus, humanity recognized the positron, a positively charged copy of the electron.

因此，人类认识到了正，一种带正的拷贝。

These may be an electron and its antimatter equivalent, a positron, or two heavier leptons, a muon and an antimuon.

它们可能一和它的反物质等价物，一正，或者两更重的轻，一介和一反介。

Within the limits of accuracy of the experiment, positron spin-flipping seems to happen at the same frequency as electron spin-flipping.

在实验精度可以达到的范围内，正的自旋反转似乎与的自旋反转发生在同一微波频率上。

So what? His observation of highenergy positrons has provided the first conclusive evidence for the existence of galactic dark matter.

怎么样？他对高能正点的观察报告首次确切证明了银河暗物质的存在。

The positron then immediately finds an electron, the two annihilate making a tiny flash of light, a photon.

正马上找到一，这两湮灭时产生光的微小闪光。

The isotopes used in PET decay by positron emission.

PET 中使用的同位素通过正发射衰变。