bismuth test

例句：

1. 1.The bismuth test is a crucial step in the analysis of uranium samples.
   铋测试是分析铀样本的关键步骤。
2. 2. The bismuth test was used to detect trace amounts of uranium in the soil.
   铋测试用于检测土壤中微量的铀。
3. 3. The bismuth test is often used in environmental science to assess the presence of radioactive materials.
   铋测试常用于环境科学，以评估放射性物质的存在。