radium的例句

radium 的相关例句:

1.	Radium and uranium are radioactive elements.
	镭和铀是放射性元素。
2.	Radium is a silver-white metal, which tarnishes rapidly on contact with air.
	镭是一种银白色的金属，它一接触空气就迅速失去光泽。
3.	a pack of radium
	镭源
4.	use radium in the treatment of earner
	用放射疗法治疗癌症