您要查找的是不是：
- Radioactive ray is material thing. 放射线是实际的物质。
- Radium and uranium are radioactive elements. 镭和铀是放射性元素。
- Experience is their preparation for giving advice. 经验为她们进行咨询作了准备。
- A certain discharge of possible radioactive effluent. 一定量的可能有放射性的废水。
- The advertising campaign is still in preparation. 广告宣传攻势仍在准备中。
- You can't pass an exam without preparation. 不准备就考不及格。
- A radioactive isotope of carbon, especially carbon 14. 放射性碳碳的一种放射性同位素，尤指碳14。
- A drug or preparation containing arsenic. 砷化合物含砷的药剂或制剂
- The dictionary is now in rapid preparation. 这本词典现在正在迅速编写之中。
- The preparation for his cough included camphor. 为医治他的咳嗽而调制的药中包括樟脑。
- A naturally occurring or artificially produced radioactive element. 放射性元素自然产生或人为制造的放射性元素
- A radioactive compound used in radiotherapy or diagnosis. 放射性药剂一种用于放射性治疗或诊断的放射性化合物
- The immediate product of the radioactive decay of an element. 继承元素某种元素放射性衰变的直接产物
- Glycerol or a preparation of glycerol. 甘油，丙三醇甘油或丙三醇配制品
- Isotopes that emit radioactive particles; a stove emitting heat. 发射出放射性粒子的同位素; 发出热量的炉子
- Made up without preparation; improvised. 即兴的不经准备而作的; 即兴的
- The radioactive waste should be buried deeply under the ground in sealed box. 这些放射性废物应该放在密封的箱子里深埋在地下。
- Care or preparation in advance; foresight. 先见，提前考虑或准备; 远见
- Deadly weapons; a deadly spill of radioactive waste products. 致命的武器; 导致死亡的核辐射废物的倾倒
- Years of work have gone into the preparation of this dictionary. 这部词典的筹备工作已进行了多年。
