plutonium bomb

Iran is building a heavy-water nuclear research reactor at Arak, which it says is needed for the country's agricultural and medical development but which the US and Israel say could allow it to develop a plutonium nuclear bomb.

伊朗正在阿拉克修建一个重水核研究反应堆，并声称这是出于该国农业和医疗发展的需要。不过，美国和以色列认为这会让伊朗得以开发钚核弹。

Now you might want to look at plutonium as another fissionable material that you might use in a bomb.

现在你们可能想看看如果是钚，另一种可用于制造核弹的裂变物质

A bomb-grade plutonium factory near Bolshoi Balchug has been discharging radioactive particles into the river for decades.

Bolshoi Balchug附近的一座钚炸弹工厂数十年来一直向叶尼塞河排放放射性污染物。