B型肝炎病毒的感染与预防
hepatitis B virus infection and prevention
GIS设备事故的预防
Prevention of Accidents in GIS
Prevention of Failure for GIS
Haffkine氏预防接种
Haffkine’s vaccination
Haffkine’s preventive vaccination against plague
艾滋病预防教育
AIDS prevention education
艾滋病预防控制
AIDS prevention and control
艾滋病预防知识
Knowledge of AIDS prevention
爱滋病预防行为意图
AIDS preventive intentions
安全预防措施
Safety precaution
defence measures of traffic accident