前言： 为了充分对生产法国玫瑰精油所产生的废水进行综合利用，本研究采用真空浓缩， 乙醇除杂等方法从该废水提取玫瑰红色素，并采用分光光度法对其稳定性进行了研究。

To make the full use of residual water formed in the process of rose essential oil distillation, red pigment was isolated from the water. The stability of the red pigment was studied.

youdao

为家庭精油混合，使空气中的气味甜可引起窦性头痛的放松和治疗，根据美国国家癌症研究所。

Essential oil blends for the home that make the air smell sweet can induce relaxation and treat sinus headache, according to the National Cancer Institute.

youdao

各种精油混用以及精油与合成农药混用所产生的增效作用。

Synergistic effect of certain essential oils when mixed with other essential oils or synthetic insecticides.

youdao