same quality sample

例句：

1. 1.The company tested the new product with a same quality sample.
   该公司用同质样本测试了新产品。
2. 2. The research team collected data from different regions to ensure the same quality sample.
   研究团队从不同地区收集数据以确保同质样本。
3. 3. The manufacturer insisted on using the same quality sample for all its products.
   制造商坚持使用所有产品的同质样本。