volatilesn.挥发组分volatileadj.不稳定的；反复无常的；易挥发的n.挥发物volatile chemical compounds挥发性化学物质Volatile Oil of Herba Asarivolatile organic pollutants挥发性有机污染物volatile phenolic compounds挥发酚volatile oil of Scutellaria黄芩挥发油volatile oils from Lavender薰衣草精油volatile folavor components挥发性成分volatile political situation动荡不定的政治局势volatile organic exhaust gas挥发性有机废气volatile evaporation residue挥发性蒸发残渣