possitive causal relationship 必然因果关系

bilevel possitive airway pressure 如双相气道正压 ; 气道正压

possitive ion 正离子

possitive regulation 正调节

False Possitive Rate 假阳性率

possitive end-expiratory pressure 性心源性肺水肿和高血压急性心衰的患者应尽早应用呼气末正压

possitive temperature coefficient resistance 电阻正温度系数

Possitive protection system 主动保护系统