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radium

英 [ˈreɪdiəm]

美 [ˈreɪdiəm]

n.  镭

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BNC.45531 / COCA.30174

牛津词典

    noun


    • a chemical element. Radium is a white radioactive metal used in the treatment of diseases such as cancer.

      柯林斯词典


      • Radiumis a radioactive element which is used in the treatment of cancer.

        英英释义

        noun

        • an intensely radioactive metallic element that occurs in minute amounts in uranium ores
            Synonym:Raatomic number 88

          双语例句

          • It is produced from radium in the decay chain of uranium, an element found in varying amounts in all rocks and soil.
            它产生于铀衰变链中的镭,而铀是所有岩石和土壤中都能找到的一种元素,含量各不相同。
          • He was the discoverer of the element radium.
            他是镭元素的发现者。
          • Radioactivity is a special quality of radium.
            放射性是镭的一种特性。
          • 746. The radiation radius of the radioactive radium radiator in the stadium is variable.
            746.有放射性的镭辐射体(散热器)在广场中的辐射半径是可变的。
          • You could not safely hold a handful of radium atoms, for radium can cause serious burns.
            手里若拿着一把镭原子,不可能安然无恙,因为镭会引起严重烧伤。
          • It was an electroscope which contained a small amount of radium.
            这是一个验电器,其中载有少量的镭。
          • The radium isotopes are absorbed to an appreciable extent through the human and animal gut.
            镭的同位素通过人和动物的肠子时有很大部分被吸收。
          • Tell me when radium was found.
            告诉我镭是什么时候被发现的。
          • Madame Curie devoted all her time to the study of radium.
            居里夫人一生致力于镭的研究。
          • Thanks to this discovery of new, very powerful radioactive substances, particularly radium, the study of radioactivity progressed with marvellous rapidity.
            由于新的、更强的放射性物质,特别是镭的发现使放射性研究取得了飞速发展。