permanent lag固定延迟permanentadj.永久的；持久的n.<口> 烫发permanent breast prosthesis永久性假乳房permanent change of station永久性调动permanent multi-use house永久性多种用途猪舍permanent magnetic material永磁材料permanent employment system终身雇佣制permanent magnent generator永磁发电机permanent UN representative常驻联合国代表permanently locked envelope固定锁定包络permanent stainless cathode不锈钢阴极permanent magnet step motor永磁步进电动机