“钋”造句

钋是高放射性的元素,金属.
Polonium is a highly radioactive element and a metalloid.

两个遗留有钋的星球被一些不明原因突然破坏.
Two old plutonium disposal plants damaged at once by some unestablished reason.

钋的同位素在自然界中的确存在,但是相当罕见.
The isotope does occur in nature but only extremely rarely.

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