submicro sample

例句：

1. 1.The microbiologist used a submicro sample to test the water's quality.
   微生物学家使用一个亚微量样品来测试水质。
2. 2.The scientist collected submicro samples from different parts of the ecosystem.
   科学家从生态系统的不同部分收集了亚微量样品。
3. 3.The submicro sample analysis revealed a significant increase in pollutants.
   亚微量样品分析显示污染物显著增加。