radium 高考

Radon is the daughter of radium.

氡子体。

Before broaching the subject of this lecture, I should like to recall that the discoveries of radium and of polonium were made by Pierre Curie in collaboration with me.

在开始讨论这次演讲话题之前，我还想回忆一下，钋发现皮埃尔·居里与我合作完成。

We mainly producing in golf radium simulator, gradienter simulator of golf club, velometer of golf club, bags of golf balls and clothes, golf shoes, golf hats and other relative products.

主要产品高尔夫器、高尔夫挥杆水平仪器、高尔夫挥杆测速器、高尔夫毬具包、高尔夫衣物包、鞋、帽子等相关产品。

We found that pitchblende contains at least two radioactive materials, one of which, accompanying bismuth, has been given the name polonium, while the other, paired with barium, has been called radium.

我们发现沥青铀矿物中至少含有两种放性物质：与铋伴生命名为钋，与钡伴生命名为。