na. 【化】(香)精油
[网络] 香精油；植物精油；精华油

essential oils的用法和样例：

例句

Patchouli essential oil has traditionally found its uses as a traditional medicine in the East.广霍香精油，在东方，传说中被发现作为一种传统的药物使用。
The technical process and conditions for consecutive extraction of essential oil and hesperidin from orange peel were studied.研究了从柑桔皮渣中联合提取香精油和橙皮苷的工艺条件。

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