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- Water contains hydrogen and oxygen. 水含有氢和氧。
- 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。
- Water is composed of hydrogen and oxygen. 水由氢和氧组成。
- A certain discharge of possible radioactive effluent. 一定量的可能有放射性的废水。
- radioactive hydrogen [医] 放射性氢
- Water is composed of the elements hydrogen and oxygen. 水是由氢元素和氧元素组成的。
- 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 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
- Water may be resolved into hydrogen and oxygen. 水可以分解为氢和氧。
- 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
- The hydrogen is the known the lightest element. 氢是已知的最轻的元素。
- 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。
- Hydrogen and oxygen combine/Hydrogen combines with oxygen to form water. 氢与氧化合成水。
- 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
- A molecule of water consists of two atoms of hydrogen and one atom of oxygen. 水分子含有两个氢原子和一个氧原子。
- Water can be dissolved into hydrogen and oxygen. 水能分解成氢和氧。
- Both hydrogen and oxygen are elements. 氢和氧都是化学元素。
