Pilots are trained to use other instruments in combination should this instrument or its power fail.

When this instrument fails, it indicates a water level higher than the real level.

Sometimes, an instrument may fail to express the intention of the involved parties.

Whether it was fit for breathing remained to be seen, as his instruments had failed to function.

He could plow space with his living brain if the instruments failed .

However, this instrument failed to operate after 8 months due to an on-board circuit failure.

When it came to the point, those extremely expensive instruments, the torpedoes, had simply failed.

It was unanimously agreed that this financial instrument fails to meet expectations in the area of environmental protection.

An American satellite had been performing such measurements since 1985, but its instruments failed earlier this year.

From the radar came a fearful cry that the instruments were failing.