安全测试与砰估
security test and evaluation
安全员制度
safety representative system
被动式乘员安全警报灯
passive restraint tell-tale
表观安全性
extrinsic safety evaluation
大安全观
macro-safety view
The General Outlook of Safety
view of macro-safety
第一级人员安全危害
Hazard
fist-class personnel-safety
电气安全测试
electrical safety testing