bicarbonate alkalinity

例句：

1. 1.The doctor prescribed a medication that contains bicarbonate to help with the acid reflux.
   医生开了一种含有碳酸氢盐的药物来帮助治疗胃酸反流。
2. 2.The pH level of the solution is adjusted by adding bicarbonate to neutralize the acidity.
   通过添加碳酸氢盐来调整溶液的pH值，使其中和酸性。
3. 3. In baking, bicarbonate is used as a leavening agent to create a light and fluffy texture.
   在烘焙中，碳酸氢盐用作膨松剂，以产生轻盈蓬松的质地。