ring of formal power series

例句：

1. 1.The ring of formal power series is a crucial component in the design of governmental systems.
   正式的权力系列是政府系统设计中至关重要的组成部分。
2. 2. In this study, we will explore the ring of formal power series and its impact on decision-making processes.
   在本研究中，我们将探讨正式的权力系列及其对决策过程的影响。
3. 3. The ring of formal power series has been used to identify key stakeholders in various sectors of society.
   正式的权力系列已被用来识别社会各领域的关键利益相关者。