quarternary phase diagram

例句：

1. 1.The quarternary phase is a critical stage in the development of a chemical reaction.
   四分之一阶段是化学反应发展过程中的一个关键阶段。
2. 2.During the quarternary phase, the temperature and pressure must be carefully controlled.
   在四分之一阶段，温度和压力必须严格控制。
3. 3.The research team has successfully completed the first quarternary phase experiment.
   研究团队成功完成了第一次四分之一阶段实验。