There is a critical number of structural elements that defines whether the system has reserve ability or not.

A critical number of eyes in the cave walls had opened.

There's something about having a critical number of birds that made finding the solution much easier.

If was just matter of critical number, well, he's long been repaired; he must be back up to it.

Soon, we were well below the critical number for a splinter.

So it looks like the critical numbers are cost per kW and utilization.

But others said it was too soon to tell, adding that next week's jobless claims would be a critical number to watch.

Did he fall below that "critical number" it takes to sustain self-awareness?

"That's one of the critical numbers one needs to know whether it can be commercialized."

Analysis has been worked out from a critical number of dimension (26) down to four.