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Use "exchangers" in a sentence
"He also showed that by increasing air pressure, a smaller temperature difference between heat exchangers is needed for heat to begin converting into sound."
"They also work through middlemen, known as "exchangers," who proliferate where one cannot deal in real estate, where public advertising and the illegal housing market have been demonized."
"There are specialists in finding each family what they need, called "exchangers," and it's an occupation at the edges of the law."