saponification flask

例句：

1. 1.The saponification flask was used to test the effectiveness of the soap recipe.
   这个皂化瓶被用来测试肥皂配方的有效性。
2. 2.The saponification flask was filled with water and a few drops of oil, then heated to create soap.
   这个皂化瓶被装满水和几滴油，然后加热以产生肥皂。
3. 3.The saponification flask was used as a tool for making soap in the old days.
   这个皂化瓶在旧时代用作制作肥皂的工具。