permanentlyadv.永久地permanentadj.永久的；持久的n.<口> 烫发permanent control永久性控制permanent mapping永久映象permanent roofing永久性屋面permanent current持恒电流permanent storage永久存储器,永恒性存储器,固定存储器永久性存储器,固定存储器permanent habitat永久生境permanent display连续显示permanent subsidy经常补助费permanent roadway永久巷道permanent dention恒牙初期