actinide series

例句：

1. 1. The actinide series is a group of elements thatare highly radioactive and have long half-lives.
   锕系元素系列是一组高度放射性且半衰期很长的元素。
2. 2.The actinide series is used innuclear power plants to generate electricity.
   锕系元素系列用于核电站发电。
3. 3. Theactinide series is alsoused in medical imaging devices todetect cancerous tumors.
   锕系元素系列也用于医疗成像设备来检测癌症肿瘤。