normalsample

例句：

1. 1.The researchers collected a variety of normal samplesto study the effects of different factors onthe growth of plants.
   研究人员收集了各种正常样本来研究不同因素对植物生长的影响。
2. 2. During the experiment, the normalsample was carefully monitored to ensure accuracy.
   在实验过程中，正常样本被仔细监控以确保准确性。
3. 3. The normal sample was tested forcontamination and found to be freefrom any foreign substances.
   正常样本进行了污染测试，发现不含有任何外来物质。