free organic acids
... 游梁：walking beam 游离有机酸：Free Organic Acids 游离烃气：free hydrocarbon gas ...
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还发现不同荧光颜色的家蚕茧中所含的游离有机酸基本相同。
The free organic acids of different fluorescent colour cocoons are found to be the same.
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目的对半夏药材中的总游离有机酸进行提取分离和药理作用的研究。
OBJECTIVE To investigate into the extraction and isolation of total free organic acid in Rhizoma Pinelliae and its pharmacological effect.
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