他们一连烧了好几天，结果得到许多灰色的粉末，很久以来，人们就把这种物质叫做“天然小苏打”。
The combustion of these plants was kept up for several days, and the result was a compact gray mass, which has been long known under the name of "natural soda."
小苏打。传统的洗发水替代品，可以在不夺去天然油脂的同时清洁头皮。
Bicarbonate of soda. The traditional alternative to shampoo, cleans the scalp without stripping it of natural oils.
本文根据正交实验原理，对天然卤水与碳酸氢铵一步反应直接生产小苏打的工艺条件进行优化。
This paper optimizes according to the principle of orthogonal experiment the process conditions for directly producing sodium bicarbonate using natural brine and ammonium bicarbonate by one step.
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