nitrate lye

例句：

1. 1. This chemical is commonly used as a preservative in food processing.
   这种化学物质在食品加工中常被用作防腐剂。
2. 2.The nitrate lye was added to the water to neutralize the acidity.
   硝酸钠被加入水中以中和酸性。
3. 3. The nitrate lye solution was used to treat the soil for improved fertility.
   硝酸钠溶液被用来处理土壤，以提高其肥力。