硝酸钠

例句：

1. 1. This chemical is used to make fertilizers and pesticides.
   这种化学物质用于制造肥料和农药。
2. 2. The salt was dissolved in water to create a solution.
   盐溶解在水中以形成溶液。
3. 3. The plant requires a certain amount of nitrogen to grow well.
   植物需要一定量的氮来良好生长。