components of essential oil

• 挥发油成分

components of essential oil的用法和样例：

例句

1. Chemical Constituents of Volatile Oil from Leaf of Syringa oblata L.
   丁香属紫丁香叶挥发油成分的研究。
2. Studies on the Chemical Constituents of the Essential Oil of Artemisia tournefortiana Reichb.
   湿地蒿挥发油成分研究。