thorium怎么读，thorium什么意思，thorium短语和例句

1.Thorium is separated by extraction chromatography.

用萃取色层法分离钍。

2.The use of thoria (thorium dioxide) as an agent was rapidly stopped as thorium causes liver cancer.

而使用氧化钍(二氧化钍)作为代理人迅速停止钍导致肝癌。

3.There are some radioactive nuclides such as uranium, radium, thorium and polonium in pit effluent of uranium mine.

铀矿山坑道污水含有铀、镭、钍、钋等放射性核素，外排前必须加以处理。

4.In this case the geologists drilled into the stalagmites and estimated their age from the way that uranium decays into an isotope of thorium.

地质学家在石笋上钻孔，使用铀衰变成钍的同位素的方法确定它们的年龄。

5.Unlike most supernovae, this one spewed lots of elements far heavier than iron, including radioactive thorium and uranium.

这颗晕星不同于大多数超新星，它吐出的许多元素比铁还重，其中包括放射性钍和铀。

6.Radium, uranium, and thorium are radioactive metallic elements.

镭、铀和钍都属于放射性金属元素。

7.The team's measurement of thorium revealed the overall abundance pattern of heavy elements for this object.

该队的测量发现钍的总体格局丰富的重元素，为这个目的。

8.Helium is the by product of millennia of radioactive decay from the elements thorium and uranium.

氦是钍和铀元素数千年放射性衰变的副产品。