permanents轧光细棉布
permanentadj.永久的;持久的n.<口> 烫发
permanent dipole永久偶极子
permanent target永靶, 固定靶, 静靶
permanent hotbed固定温床
permanent fender固定护舷材
permanent policy长期的政策
permanent action永久酌,持续性动作
permanent stream常流河,常流
permanent pacing永久起搏
permanent wiring固定配线