NPSI

例句：

1. 1. The project is in progress, and we need to stay updated on the latest developments.
   项目正在进行中，我们需要随时了解最新进展。
2. 2. The NPSI has been a topic of discussion among experts for years.
   NPSI一直是专家讨论多年的主题。
3. 3. The NPSI is a complex system that requires careful analysis and planning.
   NPSI是一个复杂的系统，需要仔细分析和规划。