hardripe stage

例句：

1. 1. The plant is in its hard ripe stage, ready to be harvested.
   植物处于其硬熟阶段，准备收获。
2. 2. During the hard ripe stage, the fruit must be carefully monitored for quality control.
   在硬熟阶段，必须仔细监控水果以进行质量控制。
3. 3.The research team has identified several key stages in the process that need to be optimized.
   研究团队已经确定了过程中的几个关键阶段，需要优化这些阶段。