皂化

例句：

1. 1. The soap factory produces high-quality soaps for the market.
   这家肥皂工厂为市场生产高品质的肥皂。
2. 2.During the soap making process, the fat is firstly saponified to produce soap.
   在肥皂生产过程中，首先将脂肪皂化以生产肥皂。
3. 3. The saponification reaction is a crucial step in the production of soap.
   皂化反应是肥皂生产过程中至关重要的一步。