inspection of optical crystal

例句：

1. 1. The inspection of optical crystals is crucial for the quality control of the final product.
   光学晶体的检查对于最终产品的质量控制至关重要。
2. 2.The company conducted an inspection of optical crystals to ensure their purity and consistency.
   该公司对光学晶体进行了检查，以确保其纯度和一致性。
3. 3.During the inspection, the technician found a small crack in one of the optical crystals.
   在检查过程中，技术人员发现其中一个光学晶体上有一个微小的裂缝。