positrons的中文翻译

positrons

英[ˈpɒzɪtrɒn] 美[ˈpɑːzɪtrɑːn]

n. [物] 正电子，阳电子

双语例句

1. Barry Barish: it's a machine that will collide electrons and positrons.: 巴里·巴里斯：这是对撞电子和正电子的机器。

2. Coaxing hot and bothered antiprotons and positrons to couple is quite a task.: 让处于高温与高速运动状态的反质子和正电子进行结合是一桩非常困难的工作。

3. Some astronomers have suggested that exploding stars could produce the positrons.: 一些天文学家猜测爆炸的恒星能够产生这些正电子。

4. The process would also create large numbers of electrons and positrons at the core of the Milky Way.: 这个过程也会在银河中心产生大量的电子和反电子。

5. The antiprotons are then pushed into the same trap as the positrons and left to mingle for a second or so.: 然后将反质子推入到装有正电子的容器中，用大约一秒钟的时间等待它们混合。

6. Meanwhile, positrons from the decay of a form of radioactive sodium are separately slowed and accumulated.: 同时，来自放射性钠一种形式的衰减正电子被慢慢分开且累积起来。

7. The chances that positrons are trapped in cation vaccancies increase with the increasing defects contents.: 随缺陷浓度增大，缺陷捕获正电子的机率增大。

8. During a PET scan, the patient is injected with radioactive tracer molecules that emit positrons when they decay.: 正电子断层扫描仪进行人体扫描的时候，病人被注入正电子放射性核素，然后推入检测环。

9. Normally, it is impossible to distinguish Cherenkov radiation generated by positrons from that created by electrons.: 一般来说，由电子引发的切伦科夫辐射和由正电子引发的切伦科夫辐射是不可能区分开的。

10. These positrons then come into contact with electrons in the body, and the two annihilate, releasing two gamma-ray photons.: 正电子与人体组织中的电子发生作用而湮灭，产生两个伽玛射线光子。

11. But the lightning flash detected by Fermi appeared to have produced about 100 trillion positrons: "That's a lot," he said.: 不过，费尔米发现的闪电似乎产生了一百万亿正电子，“那可是个天文数字，”他说。

12. It has developed better techniques for cooling both positrons and antiprotons, which should allow it to trap more anti-atoms.: 该小组已开发出冷却正电子和反质子的改进技术，通过应用这些技术应该能够捕获到更多的反原子。

13. Positrons and electrons annihilated each other, emitting gamma rays detected by Fermi's gamma-ray burst detector, researchers said.: 正电子和电子会相互湮灭而发射出的伽玛射线，再由费米的爆发检测器所检测到，研究人员说。

14. This is because radioactive nuclear elements are formed in the giant outbursts of energy, and some of these decay by releasing positrons.: 这是因为放射性核素在这巨大的爆炸能量中形成，其中一些放射出正电子而衰变。

15. The [terrestrial gamma-ray flash] produced high-speed electrons and positrons, which then rode up Earth's magnetic field to strike the spacecraft.: 这些地面伽玛射线闪光产生了高速的电子和正电子，然后它们缩回到地球的磁场上去撞击航天器。

16. However, it is unclear whether these positrons can escape from the stellar debris in sufficient quantity to explain the size of the observed cloud.: 然而，尚不清楚是否有足够数量的正电子能够逃离恒星残骸以解释观察得到云团的大小。

17. By concentrating the energy in space and time, the laser produces positrons more rapidly and in greater density than ever before in the laboratory.: 通过在空间和时间上集中能量，激光比之前实验室更快更多地制造出了正电子。

18. And although Asimov's "positronic" brains do not exist, positrons are indeed used to probe human brains in positron-emission tomography (PET) scanning.: 虽然阿西莫夫虚构的“正电子”大脑并不存在，但是正电子理论确确实实被应用于正电子衍射成像(PET)扫描技术上用来探索人类大脑。

19. The Fermi Space Telescope found hints in 2009 of the telltale pattern associated with positrons in terrestrial gamma rays stemming from lightning storms.: 费米太空望远镜在2009年就曾发现这一与正电子有关的特征现象的线索，地点正是在源于雷暴的地表伽马射线中。

20. The positrons, produced by the decay of radioactive sodium, are cooled into a similarly sized cloud of around 1m particles and held in a neighbouring trap.: 由放射性钠衰变产生正电子，冷却后形成一个由大约100万个正电子组成的体积同样大小的粒子云团，这团正电子被存放在相邻的一个容器中。

21. When two WIMPs collide, they can annihilate each other, giving rise to other particles—such as positrons. The data from AMS so far match these predictions.: 当两个大质量弱相互作用粒子碰撞时，它们会彼此消灭，从而产生另一些粒子——比如正电子。

22. The presence of the resulting anti-matter is detectable by the gamma rays produced when positrons are destroyed when they come into contact with nearby matter.: 反物质与物质接触后溃灭产生的伽马射线是反物质存在的证据。

23. Theteam proved that among their 10 million antiprotons and 700 million positrons, 38 stable atoms of antihydrogen were formed, lasting about two tenths of asecond each.: 研究小组证实，1000万个反质子和7亿个正电子共形成38个稳定的反氢原子，每一个的存在时间只有短短十分之二秒左右。

24. As Dr Colin described on July 9th to the International Cosmic Ray Conference held in Lodz, Poland, the moon blocks electrons and positrons as effectively as it blocks light.: 7月9号在波兰罗兹举办的国际宇宙射线大会上，科林博士指出，月球能像阻隔光线那样有效的阻隔电子和正电子。

25. Energetic electrons and positrons (antielectrons) move out from an inner X-ray ring, which marks a shockwave between different forms of matter, to produce an extended X-ray glow.: 高能电子和正电子从一个内部的X射线环中向外运动，在不同形式的物质中标记出了一个冲击波，产生了一个膨胀的X射线光。

26. The results show that the defects annihilating the positrons is almost the same in various doped films, and the interactions between the dopants and the positrons are not distinct.: 多普勒增宽谱的结果表明，不同杂质元素掺杂的金刚石薄膜，其中使正电子湮没的缺陷种类是相同的；

27. The results show that the defects annihilating the positrons is almost the same in various doped films, and the interactions between the dopants and the positrons are not distinct.: 多普勒增宽谱的结果表明，不同杂质元素掺杂的金刚石薄膜，其中使正电子湮没的缺陷种类是相同的；

百度翻译

positrons的意思

有道翻译

positrons的翻译

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