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- positron isotope 正电子核素
- A radioactive isotope of carbon, especially carbon 14. 放射性碳碳的一种放射性同位素，尤指碳14。
- An electron with a negative charge, as contrasted with a positron. 电子带有负电荷，与正电荷相反的电子
- The symbol for the isotope deuterium. 氘的化学符号同位素氘的符号
- Positron is how it was detected by ? 正电子是如何被检测出来的呢？
- Its most common form, or isotope, has 146 neutrons. 它最常见的形式或者同位素有146个中子。
- IS ~(40)Ca_(20) A STABLE ISOTOPE? ~(40)Ca_(20)是否稳定?
- Simmons: Get me a sample and some isotope readings. 弄些样本和同位素读数。
- Isotope shifts and hyperfine structure spectrum[J]. 引用该论文 马洪良.
- The antielectron, or positron, was discovered in 1932. 反电子或正电子,是在1932年被发现。
- To participate in annihilation, as do an electron and a positron. 湮灭，湮没湮灭，如电子与正电子
- Changes of nuclear mass and nuclear size cause isotope shifts. 原子核质量和大小的不同引起同位素移动。
- The isotope ratio is directly used for comparing oils or gases. 同位素比率直接用于比较各种石油或天然气。
- To participate in annihilation,as do an electron and a positron. 湮灭，湮没湮灭，如电子与正电子
- An electron with a negative charge,as contrasted with a positron. 电子带有负电荷，与正电荷相反的电子
- This creates, as it were, electron and positron shadows. 这样也就有了电子和正电子的阴影。
- An hour later the next lighter stable isotope, xenon 134, appeared. 一小时之后，略轻一点的稳定同位素氙134出现。
- This indium isotope was created at the same time as the earth. 这种铟同位素与地球产生在同一时代。
- The most abundant isotope of hydrogen,H1,with atomic mass1. 氘氢的数量最丰富的一种同位素，H1，原子质量为1。
- The atmospheric helium isotope ratio: Is it changing? 大气氦同位素比率在变化吗?
