These ores were worked by the ancients, but so inefficiently that their spoilheaps can be smelted again with profit.
He rebuilt the temple of Assur at Nineveh, and a palace for himself now covered by the Nebi-Yunus mound and so inefficiently explored.
In the intermittent system the waste heat can, it is true, be utilized either for raising steam (but inefficiently and inconveniently, because of the intermittency), or by a regenerative method like the Siemens, Fig.
We apply inefficient agricultural techniques to grow and harvest them, and then we inefficiently distribute them.
How would you define inefficiently? Add your definition here.