freeze-in impurity

例句：

1. 1. The process offreezing-in impurities is crucial for the quality control of the final product.
   冻结杂质的过程对于最终产品的质量控制至关重要。
2. 2.In the manufacturing process, it's important to avoid freeze-in impurities that could affect the final product's quality.
   在生产过程中，避免影响最终产品质量的冻结杂质非常重要。
3. 3. The company has implemented stricter quality control measures to prevent freeze-in impurities from entering the final product.
   该公司已实施更严格的质量控制措施，以防止冻结杂质进入最终产品。