PMF

例句：

1. 1. The project manager is responsible for managing the team's progress.
   项目经理负责管理团队的进度。
2. 2. The PMF is a tool used to analyze data and identify trends.
   PMF是一种用于分析数据并识别趋势的工具。
3. 3. The PMF was designed to improve efficiency in the production process.
   PMF被设计用来提高生产过程中的效率。