1·Blackett was really the first to obtain hard evidence for the existence of a positron but he was afraid to publish it.
布莱克特几乎是第一个发现正电子存在的有力证据的人，但他却没敢发表这个结果。
2·To the electron, the corresponding system is the positron, which was observed after the prediction in cosmic ray experiments by Anderson in 1932.
对电子来说，与其相对应的是正电子，后者被安德森于1932年在宇宙射线实验中发现。
3·The result is that the electron shadow and the positron shadow are separated.
结果将使得电子的阴影和正电子的阴影被分开。
4·And they did an imaging test called positron emission tomography or PET to test for brain function by looking to see how well the brain USES glucose or sugar.
他们做了一个成像测试正电子发射断层或PET测试脑功能，看看大脑是如何使用好葡萄糖或糖。
5·One way to create such short bursts of gamma rays is through the collision — and subsequent annihilation, as the mass of those particles converts into energy — of an electron and a positron.
制造伽马射线短脉冲的一种方法，是电子与正电子的碰撞——之后的湮灭，使粒子的质量转化为能量。