complex fertilizer

• 复合肥料

complex fertilizer的用法和样例：

例句

1. It's a economical way to make compound fertilizer named Potassium Phosphate, Using carnallite and wet phosphoric acid by double decomposition reaction.
   用光卤石和湿法磷酸通过复分解反应生产磷钾复合肥料是较经济的方法。