radiochemical replacement

例句：

1. 1.In the field of radiochemistry, radioactive chemical replacement is a crucial technique for isolating and purifying radioactive materials.
   在放射化学领域，放射性化学替换是一种关键技术，用于分离和纯化放射性材料。
2. 2. The process involves using radioactive chemicals to replace non-radioactive ones in a reaction, which can lead to significant improvements in yield and purity.
   该过程涉及使用放射性化学物质来替代反应中的非放射性物质，这可以显著提高产率和纯度。
3. 3. Radiochemical replacement has been widely used in nuclear waste management, where it is essential for isolating hazardous materials from the environment.
   放射性化学替换在核废物管理中得到了广泛应用，对于从环境中分离危险物质至关重要。