In the event of the machine not operating correctly, an error code will appear.

如果机器运转不正常，就会出现错误代码。

《牛津词典》

Probably the most difficult challenge is a distributed system must be able to continue operating correctly even when components fail.

其中最困难的可能是分布式系统必须在一些组件出现故障的情况下继续正常运行。

youdao

We could have qualified higher in Malaysia so we know that more performance is there, when every system is operating correctly on the car.

我们本可以在马来西亚取得更好的排位赛成绩，所以我们知道这里的表现应该会更好——只要车上的所有系统都正常工作！

youdao

All warning systems were operating correctly at the time of Katie's accident.

BBC: Train death Katie Littlewood 'did not look' at crossing