病理危险因素
Histopathologic risk factors
丙类危险性工作场所
class c dangerous workplace
变电站危险点分析
Analysis on Dangerous Point in Substation
避免紧迫危险
avoiding immediate danger
比例危险模型
proportional hazard model PHM
proportional hazards model
proportional hazard model
被列为危险楼宇
had been declared a safety hazard