This article laid a strong emphasis on the imago of the fragrance in The Tang and Song Dynasties .
本文以唐宋词中的香意象作为研究对象。
The chemical composition of tobacco flavor and perfume is complicated,and there is no suitable chemical quality control method by now.
烟用香精香料化学成分复杂,现无合适的化学质量控制方法,通过实例,对10个批次正常生产的香料标样进行同时蒸馏萃取,取其萃取液进行气相色谱氢焰检测。