| 21. | Countercurrent exchange helps you to save energy.
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| 22. | The countercurrent separation starts with choosing an appropriate biphasic solvent system for the desired separation.
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| 23. | But there are countercurrents in liberalism.
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| 24. | Countercurrent multiplication has been found in the kidneys as well as in many other biological organs.
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| 25. | The exchange of heat in this diagram ( 1 ) is an example of countercurrent exchange.
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| 26. | The countercurrent motion of the slurry flowing down and the air flowing up provides mixing action.
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| 27. | A crosscurrent countercurrent air-to-air heat exchanger built with a humidity permeable material.
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| 28. | "Don't be afraid to go countercurrent ! " he exhorted his listeners.
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| 29. | Countercurrent centrifuges were developed after the war, and today are the favored method in many countries.
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| 30. | Countercurrent systems are effective on petroleum products with molecular weights lower than No . 2 fuel oil.
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