test period

The rate of utilization was generally higher during the test period in the presence of catalase than without added catalase.

The object is to obtain the average feed-water temperature during the test period.

The condition of the furnace should be the same at the end of the test period as at the start.

Maybe Earth would let the three-generation colonists come on out without the total test period.

You had to apply the vibration throughout the whole test period to get these failures?