radioisotope deep therapy equipment

例句：

1. 1. The researchers used a radioisotope to trace the source of thepollution.
   研究人员使用一种放射性同位素来追踪污染源。
2. 2. The scientist discovered a newradioisotope that could be usedfor medical imaging.
   科学家发现了一种新的放射性同位素，可用于医学成像。
3. 3. The team workedtirelessly to develop a radioisotope that could detect cancer cells in thebody.
   团队不懈努力，开发了一种可以检测体内癌细胞的放射性同位素。