symmetric anhydride

• 对称酸酐

symmetric anhydride的用法和样例：

例句

1. A polyamide imide was synthesized from trimelltic anhydride and di isocyanate.
   本文用偏苯三酸酐和二异氰酸酯合成了一种新型聚酰胺酰亚胺。
2. Phosphorus Pentoxide, also called Phosphoric Acid Anhydride, is a white, spiculate crystal.
   五氧化二磷又名磷酸酐，白色针状晶体。