radium造句

Radium can be used to treat cancer.
镭可以用来治疗癌症.

Radium can be fixed some distance from its original source.
镭在离它的原始母体一定距离上固定下来.

He was the discoverer of the element radium.
他是镭元素的发现者.

Radon is the daughter of radium.
氡是镭的子体.

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