这种细粉末可吸收气体，即通过化学方式与水分子结合，形成水合物。

The result is a fine powder that canslurp up gases, which chemically combine with the water molecules to form whatchemists term a hydrate.

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研磨捣碎搓擦、磨细、捣烂，使…研磨成细粉末，使成粉末状。

To rub, crush, grind, or pound into fine particles or a powder; pulverize.

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化学成分是NaHCO3。小苏打是一种晶粒状的白色细粉末；

With a chemical formula of NaHCO3, baking soda is a white powder with crystalline grains.

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