maturity phase

例句：

1. 1.The company is in the maturity phase of its growth cycle.
   该公司正处于其成长周期的成熟阶段。
2. 2. The research has reached the maturity phase where further analysis is needed.
   该研究已达到成熟阶段，需要进一步分析。
3. 3. The project is at the maturity phase, and we need to focus on improving efficiency.
   该项目处于成熟阶段，我们需要关注提高效率。