One variation is known as reversal processing.
One variation on the practice known as regifting is buying the cheapest trinket in the shop simply for the box.
One variation of this technique, using buried walls of iron filings, is increasingly being used to remove harmful chlorinated solvents, like dry-cleaning fluid, from ground water.
One variation of the proverb has it that the first five days of trading are the best predictor of the year to come.
One variation was tested in the summer of 1998, and new Squall prototypes have been featured in arms shows in Abu Dhabi and Athens, defense experts said.
One variation of the flash-bang, used particularly for riot suppression, discharges multiple small rubber balls or baton projectiles.
One variation of the gene produces proteins that seem to protect the eye.
One variation revolves around a clearinghouse service for video and audio news.
One variation on reaction types (a) and (b) is reactions leading to the formation of addition products.
One variation of always is invariably.
One variation on this could be a tax bonus system.
