volatileadj.不稳定的；反复无常的；易挥发的n.挥发物volatile flame挥发分火焰volatiles oils挥发油volatile fault非持续性故障volatile foamer[化] 物理发泡剂volatile liquid挥发性液体volatile matter挥发物volatile poison挥发性毒物volatile solute挥发溶质volatile alkali挥发性碱volatile market不稳定的行情