Results Water distillation method was good for the extraction of essential oil.

结果水蒸气蒸馏法更有利于白术挥发油的提取；

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Method: The essential oil was extracted by steam distillation.

方法：采用水蒸汽蒸馏法提取挥发油。

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Method: The essential oil was extracted by steam distillation.

方法：采用水蒸汽蒸馏法提取挥发油。

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