1)dead failure state,失效状态2)Failure status monitoring,失效状态监测3)function loss state,功能失效状态4)a system with two types of failures,两类失效状态的退化系统5)failure,失效6)invalidation,失效
用法例句
Based on the method for earthquake damage prediction and function loss state analysis of water supply system,the post earthquake performance of Yanliang water supply system of Xi′an city under seismic action of different levels are conducted,and the time for recovery of the system is estimated as well.