generator failure

例句：

1. 1.The generator failed to start up after the power outage.
   在停电后，发电机未能启动。
2. 2. The technicians were called in to fix the generator failure.
   技术人员被召来修理发电机故障。
3. 3. Due to the generator failure, we had to switch to backup power sources.
   由于发电机故障，我们不得不切换到备用电源。