钋

Polonium is a highly radioactive element and a metalloid.

钋是高放射性的元素，金属。

Two old plutonium disposal plants damaged at once by some unestablished reason.

两个遗留有钋的星球被一些不明原因突然破坏。

The isotope does occur in nature but only extremely rarely.

钋的同位素在自然界中的确存在，但是相当罕见。

The most common production of Polonium is by synthetically making it.

最常见的钋是人工生产的。

It threatens to rebuild Yongbyon and start making weapons - grade plutonium again.

它威胁说要重建宁边核设施并重新开始制造武器级别的钋。