Tincture:The alcohol solution, is to take alcohol as menstruum , to digestion plant raw material gains under the room temperature or warmup condition.

• 浸膏:是一种含精油和植物蜡等呈膏状的浓缩的非水溶剂萃取物,先用挥发性有机溶剂浸提香料植物,再蒸馏回收,残留物即为浸膏