保护系统部件
protection system component
柏克莱系统分配
Berkeley system distribution
BSD
坝面排水系统设计
design of dam face drainage system
安全系统学科
discipline of the security system
安全系统试验和调整
safety system testing and adjusting
安全系统工程
safe systematic projH
safety system engineering
safe system engineering
system safety engineering
safety systems engineering
systematic protect of safety
安全系统风险管理
safety system risk management
安全防火系统分析
fire safety system analysis