故障的英文是fault。
例句：
1、机修工立即找到了出故障的地方。
The mechanic located the fault immediately.
2、船长知道一台发动机出了故障，不过他不想惊动乘客。
The captain knew there was an engine fault but didn't want to alarm the passengers.
3、飞机由于发生电力故障而作了临时降落。
The aircraft made an unscheduled landing after developing an electrical fault.
4、飞行员正在试图排除飞机故障的时候，飞机坠毁了。
Pilots were trying to repair a fault in the plane when it crashed.
5、这是获得无故障成品的唯一方法。
This is the only way to get an end product without fault.
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