Achievements of study的用法和样例：
- It is based on the present writers' achievements of study and mapping of quantitative lithofacies palaeogeography of the Cambrian and Ordovician in North China, South China and Northwest China.
- This thesis retrospects the achievements of study of civil and foreign theories firstly, then introduces the main representative viewpoints and points out the difference among them.
- His years of study were useful in his job.
- The achievements of an athlete and a writer are not comparable.
- Achievements of Study on Clay Activated