装置失效 meaning in Chinese

failure of a aratus
failure of apparatus

Ecr fire alarm should be separate from the fire detection unit failure or must have two different messages
集控室消防警报应与烟火探测装置失效（报警信号）分开，否则必须设有两个不同的信息。
The technology builds on an on - board breathalyser system that disables the ignition , when a high level of alcohol is found in the driver ' s breath
该技术装入一个车载酒精测量计，当测量计从司机呼吸中探测到一定级别酒精浓度时，可以令车辆点火装置失效。