大家都搜：
[核]放射性元素
1、key element───[计]关键字元; 要素
2、filter element───过滤芯；滤波元件；滤波（器）元件，滤心; 滤芯
3、element 115───要素115
4、picture element───像素[质，点，元]; 图素；象素
5、scavenged element───清除元素
6、radioactive decay───[核]放射性衰变；放射衰变
7、rougher element───粗糙元件
8、diffractive element───衍射元件
9、element───n.元素；要素；原理；成分；自然环境；n.(Element)人名；(德)埃勒门特；(英)埃利门特
1、It concerns a cat that is sealed inside a box for one hour along with a radioactive element and a vial of deadly poison.───一只猫被封闭在一个盒子里一个小时，和它一起的还有一些放射性元素和一瓶毒气。
2、This radioactive element has a half-life of some 5, 700 years.───这种放射性元素半衰期约为5700年。
3、In the story, Satan's problems stem, in part, from the fact that he is made entirely of the newly discovered radioactive element radium.───小说中写道，撒旦是由最新发现的放射性元素镭制成的。
4、That essentially means that it uses a radioactive element called americium-241 to spot smoke or harmful gasses.───从字面上可以了解到，它采用放射性元素镅241来探测烟雾或者有害气体。
5、They had been interested in thorium -- a radioactive element that can fuel nuclear reactors but not be processed into weapons.───他们很感兴趣钍-放射性元素，可以核反应堆燃料，但不计入武器处理。
6、Radium is a radioactive element.───镭是一种放射性元素。
7、He said detection of the radioactive element caesium outside the No. 1 reactor today was "a bad sign" for a core meltdown.───他说今天在第一核电站检测到放射性元素铯，这是核心融化的不好迹象。
8、scientists Pierre and Marie Curie discovered the radioactive element radium.───年的今天，皮埃尔·居里和玛丽·居里发现了放射性元素镭。
9、Radioactive Element Detected Near Nuclear plant.───核电站附近发现辐射性元素。
1、Uranium ore has radioactive element.
2、Apples contain pectin and more, can be combined with the radioactive element to promote their discharge.
3、Polonium is a highly radioactive element and a metalloid.
4、Soon after, Marie Sklodowska-Curie made the crucial discovery and isolation of radium, a radioactive element.
5、This law states that the number of atoms of a radioactive element is halved after a given amount of time has elapsed.