man-made isotope

例句：

1. 1.The team used man-made isotope to analyze the samples.
   该团队使用人造同位素来分析样本。
2. 2.The researcher discovered a new type of man-made isotope.
   研究者发现了一种新的人造同位素。
3. 3. The isotopes were used in the production of medicines and other chemicals.
   这些同位素被用于生产药物和其他化学品。