prethreshold

例句：

1. 1. The prethreshold for a new drug's approval is $50 million.
   新药获批的预阈值为5000万美元。
2. 2. The researchers found the prethreshold of the reaction was at 80°C.
   研究人员发现反应的预阈值是80°C。
3. 3.In order to achieve optimal performance, the prethreshold needs to be adjusted accordingly.
   为了实现最佳性能，需要相应地调整预阈值。