niobic acid

• 铌酸

niobic acid的用法和样例：

例句

1. A series of niobic acids at different calcination temperatures was prepared.
   在不同焙烧温度下制备了一系列固体铌酸催化剂。
2. A new catalyst, niobic acid, was used for the synthesis of di 2 ethylhexyl maleate with yield of 86.
   研究了用新型催化剂铌酸催化合成马来酸二辛酯的工艺。