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- polonium isotope 钋同位素
- 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。
- Polonium and radium were important discoveries. 钋和镭都是重要的发现。
- Polonium is used to set off a nuclear bomb. 钋被用来引爆炸弹。
- The symbol for the isotope deuterium. 氘的化学符号同位素氘的符号
- 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。
- The Curies succeeded in discovering polonium in 1898. 居里夫妇于1898年成功地发现了钋。
- 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.
- Madame Curie named it polonium in honour of her native country. 居里夫人将它命名为钋，以纪念她的祖国。
- Polonium is a naturally radioactive metallic element. 钋是一种具有天然辐射性的金属元素。
- 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。
- Polonium is a highly radioactive element and a metalloid. 钋是高放射性的元素,金属。
- 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。
- 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。
- They discovered two kinds of radioactive matter----polonium and radium. 他们发现两种类型的放射性物质----钋和镭。
- The atmospheric helium isotope ratio: Is it changing? 大气氦同位素比率在变化吗?
