This is an effective way for keeping this acid out of the esophagus.
这是一种有效的方式维持这一酸了食管。
The objective is to find out the application value of D-3 hydroxybutyric acid.
目的是了解 D-3 羟丁酸的应用价值。
For example, nitrogen can be a fertilizer, but it can stunt plant growth when nitrogen comes out of the air in acid form.
举例来说,氮可以用作化肥,但其一旦以酸的形式离开大气,就会阻碍植物生长。
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