1. She has extensive knowledge in gemological studies and can accurately identify different types of gemstones.
她在宝石学研究方面有广泛的知识，能够准确辨别不同类型的宝石。

2. The gemological laboratory conducts various tests to determine the authenticity and quality of gemstones.
这个宝石学实验室进行各种测试来确定宝石的真实性和品质。