polonium是什么意思 polonium的读音、翻译、用法

polonium是什么意思 polonium的读音、翻译、用法

'polonium'是英语单词,中文翻译为“钋”。它是一种放射性元素,是一种极为有毒的金属。它的化学符号为Po,原子序数为84。

以下是9个含有'polonium'的例句:

1. Polonium was discovered by Marie and Pierre Curie in 1898. (钋是由马里·居里和皮埃尔·居里在xx年发现的。)

2. Polonium-210 is used as a heat source in space probes. (钋-210被用作太空探测器的热源。)

3. The Russian spy Alexander Litvinenko was murdered by polonium poisoning in 2006. (俄罗斯间谍亚历山大·利特维年科在xx年被钋中毒谋杀。)

4. Polonium is extremely toxic and can cause radiation sickness. (钋极为有毒,会引起辐射病。)

5. Polonium is classified as a Category A bioterrorism agent. (钋被归类为A类生物恐怖主义制剂。)

6. The half-life of polonium-210 is 138 days. (钋-210的半衰期为138天。)

7. Polonium-210 emits alpha particles, which can be stopped by a sheet of paper. (钋-210放射出阿尔法粒子,可以被一张纸阻挡。)

8. Polonium-210 is found in tobacco smoke and can increase the risk of cancer. (钋-210存在于烟草烟雾中,可能增加患癌症的风险。)

9. The assassination of Alexander Litvinenko with polonium-210 was dubbed the “Polonium Poisoning” case. (亚历山大·利特维年科被钋-210谋杀事件被称为“钋中毒”案件。)



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