n.镭

Radium, a highly radioactive element, was once used in luminous paints for clock dials and watch faces.
镭是一种高度放射性的元素，曾被用于钟表盘和手表表面的发光涂料。
Marie Curie discovered radium along with her husband Pierre in 1898.
居里夫人与她的丈夫皮埃尔在1898年一起发现了镭。
Radium has a half-life of about 1600 years, making it a long-lasting source of radiation.
镭的半衰期约为1600年，使其成为一种持久的辐射源。
The treatment involved the application of radium to shrink cancerous tumors.
这种治疗方法涉及使用镭来缩小恶性肿瘤。
Radium emits intense heat and light, which made it attractive for various industrial applications.
镭释放出强烈的热量和光，这使其在各种工业应用中具有吸引力。
In the early 20th century, radium was hailed as a miracle cure, but its harmful effects were later revealed.
在20世纪初，镭被誉为神奇的治疗手段，但后来人们发现了它的有害影响。
Due to its radioactivity, radium must be handled with extreme caution and proper protective measures.
由于其放射性，处理镭时必须极其小心并采取适当的防护措施。
Radium's decay chain produces radon gas, which is a known cause of lung cancer.
镭的衰变链会产生氡气，这是一种已知的肺癌致病因素。
The use of radium in consumer products has been largely discontinued due to its hazardous nature.
由于镭的危险性，它在消费品中的使用已基本停止。
Scientists continue to study the properties of radium for potential uses in nuclear energy and medical treatments.
科学家们继续研究镭的性质，以期在核能和医疗治疗中找到潜在的应用。