QST

例句：

1. 1. The QST analysis was used to determine the optimal conditions for fermentation.
   QST分析被用来确定发酵的最佳条件。
2. 2. The QST method is a powerful tool for studying the chemical properties of materials.
   QST方法是一种研究材料化学性质的有力工具。
3. 3. The QST model has been widely applied in various fields, such as environmental science and engineering.
   QST模型已被广泛应用于环境科学和工程领域。