constituent of volatile oil的用法和樣例：
例句
- Conclusion The main components of the volatile oil were firstly analyzed and most of them were esters and alkanes.
結論首次對林下參的揮發(fā)性成分進(jìn)行了分析，含量較高的主要是酯類(lèi)和烷烴。 - Extraction and Identification of Volatile Constituents in the Flowers of Aglaia odorata Lour.
樹(shù)蘭花揮發(fā)性成分的提取及鑒定。
