• 永久性计划

permanent set永久应变[变形],永久变定(物),最后凝结,固定装置permanentadj.永久的；持久的n.<口> 烫发permanent succession长期演替permanent-way gang轨道工区permanent perquadrat永久加大样方permanent breakpoint永久断点permanent speed drop固定速度差Permanent magnet size永磁体尺寸permanent-line tone忙音, 占线音permanent certificate终身教育证书permanent magnetmotor永磁电机permanent appointment正式任命