permanentset永久形变
permanentadj.永久的;持久的n.<口> 烫发
permanent bulkhead固定隔板
permanent-magnet永久磁铁
permanent alliance永久同盟
permanent loop lamp不挂机监视灯
permanent ship lock永久性船闸
permanent retention永久保持
permanent dentition恒齿系,二次出牙,恒牙列
permanent migration永久性迁移
permanent cell line永久细胞系[保持不断分裂能力的细胞系]
permanent electrode非自耗电极