- science of public security
- 公安: public security
- 学: study; learn
- 公安学院: public security institute
- 公安: public security◇公安部 the ministry of public security; 公安部队 public security troops [forces]; 公安机关 public security organs; 公安局 public security bureau; 公安派出所 public security station; 公安人员 public security officer
- 治安学: science of public order
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