white soda ash

例句：

1. 1.The white soda ash is used as a filler in concrete.
   白垩粉用于混凝土的填充。
2. 2. The white soda ash was found to be effective in reducing soil acidity.
   发现白垩粉能有效降低土壤酸性。
3. 3. The white soda ash was used as a substitute for sand in construction.
   白垩粉被用作建筑中的沙子替代品。