certified test sieve

例句：

1. 1.The certified test sieve is used to filter out impurities in the water.
   认证测试筛用于过滤水中的杂质。
2. 2. The certified test sieve was designed to ensure the accuracy of the results.
   认证测试筛被设计来确保结果的准确性。
3. 3. The certified test sieve was used to analyze the chemical composition of the sample.
   认证测试筛被用来分析样本的化学成分。