radium-

常见例句

• Radium and uranium are radioactive elements.
  镭和铀是放射性元素。
• He was the discoverer of the element radium.
  他是镭元素的发现者。
• Radium is a radioactive element.
  镭是个放射性元素。
• At one end of the barrel there was some radium.
  枪管的一端装有镭。
• Who is the scientist that first discover Radium?
  最先发现镭的科学家是谁?
• Who is the scientist that first discovers Radium?
  最先发现镭的科学家是谁?
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