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目的：从小茴香中提取挥发油，并测定其含量。
Objective: To extract and determine Naphtha in Fennel fruit.
方法：用药典方法对挥发油进行含量测定。
Method: Analyzing the content of volatile oil by pharmacopoeia method.
方法：运用微波技术对佩兰中挥发油的含量进行测定。
Methods:Apply microwave extraction in determining content of naphtha in Eupatorium Fortune .
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