Additional deductions are necessary to figure the usable amount of paper having repeating patterns.

An array of solar cells converts solar energy into a usable amount of direct current (DC) electricity.

Larger ID columns (over 10 mm) are used to purify usable amounts of material because of their large loading capacity.

We are not paid until we reach the bottom of the Pit and, even then, only if we find usable amounts of Nothing.

It permits even a single strand of DNA to be copied and recopied to produce usable amounts.

(By "grow," researchers mean getting cells to divide and multiply into usable amounts.)

Additional deductions are necessary to calculate the usable amount per roll when there is a regular repeat, which can involve considerable waste.

But one arrived without a usable amount, deputies said, and so was arrested for public drunkenness instead.

Whatever the merits of drilling there, it will be years before the refuge produces usable amounts of oil and natural gas.

This was the first time that a usable amount of electrical power had ever been generated from nuclear fission.