isotope carrier

例句：

1. 1.The new drug uses a rare isotope as a carrier to deliver its active ingredient.
   这种新药使用一种稀有的同位素作为载体来输送其活性成分。
2. 2.The research team used an isotope carrier to study the effects of radiation on living organisms.
   研究小组使用一种同位素载体来研究辐射对活体生物的影响。
3. 3. The isotope carrier was designed to detect and track the movement of radioactive materials.
   这种同位素载体被设计用来检测和追踪放射性材料的移动。