oxalic acid series

例句：

1. 1. The oxalic acid series is used in the production of fertilizers and pesticides.
   草酸系列用于生产肥料和农药。
2. 2. This oxalic acid series has been proven to be effective in treating hypertension.
   这种草酸系列已被证明对治疗高血压有效。
3. 3. The oxalic acid series is a key component in the manufacturing process of many industrial products.
   草酸系列是制造许多工业产品的关键成分。