thorium

详细解释:n. 钍
【化】 钍Th
【医】 钍(90号元素)

词型变化：

简写符号:Th

英语解释：

名词 thorium:

a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands同义词：Th, atomic number 90