Three radioactive minerals are curite, sklodowskite and cuprosklodowskite.(三种放射性矿物是居里石、矽卡洛多夫石和铜矽卡洛多夫石。)
How do food products become radioactive?(食物产品如何才能具有放射性？)
She gave these rays a new name“radioactive”.(她给这种射线取了一个新名字，叫“辐射”。)
Radioactive caesium has also been detected.(还发现了放射性铯。)
These minerals can be dated by radioactive decay techniques because of the very small quantities of radioactive trace elements they, in turn, contain.(这些矿物可以用放射性衰变技术测定年代，因为它们所含的放射性微量元素非常少。)
When the immunoprecipitate was subjected to SDS agarose gel electrophoresis, 3 radioactive bands were obtained, one of which corresponded to pure human albumin in its position.(将体外翻译产物的免疫沉淀物经SDS-聚丙烯酰胺电泳，得到相当于人血清白蛋白的同位素标记的电泳区带。)
About the same time, though, scientists realized comets might contain decaying radioactive isotopes that could have warmed cometary interiors to temperatures that caused the interiors to evolve.(然而，大约在同一时间，科学家们意识到彗星可能含有衰变的放射性同位素，这些同位素可能使彗星内部的温度升高到导致内部进化的温度。)
The government has been storing radioactive waste at Fernald for 50 years.(该政府50年来一直在弗纳德储存放射性废物。)
Radioactive cesium has also been detected in food.(食物中也发现了放射性铯。)
Sunflowers growing in pots were placed, with their roots submerged, in the pond contaminated with radioactive elements.(花盆里的向日葵浸没在被放射性元素污染的池塘里。)
