permanent law永久法律permanentadj.永久的；持久的n.<口> 烫发permanent water-table永久地下水位permanent magnetic suck永磁吸附permanent health policy长期健康保险单Permanent magnetic roll永磁辊permanent magent pickup永磁拾音器permanent magnet pickup永磁拾音器permanent perched water永久悬着水permanent magnetization永久磁化permanent precipitation永久沉淀permanent ossuary niche永久骨库位