The invention has simple process, little pollution in the preparing process and low producing cost.
本发明工艺简单，生产过程污染小，生产成本低。
The method is simple and the producing efficiency is high.
本发明的制造方法简便，生产效率高。
The preparation method in this experiment of producing active Al_2O_3 is simple and economical.
本实验方法生产活性氧化铝的成本低，简单易行。
The preparation method in this experiment of producing active Al_2O_3 is simple and economical.
本实验方法生产活性氧化铝的成本低，简单易行。
应用推荐