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freeze drying |
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freeze drying [′frēz ‚drī·iŋ] (engineering) A method of drying materials, such as certain foods, that would be destroyed by the loss of volatile ingredients or by drying temperatures above the freezing point; the material is frozen under high vacuum so that ice or other frozen solvent will quickly sublime and a porous solid remain. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The scientists put this entire structure through freeze-drying to remove the ice. Freeze-drying removed the ice, and high-temperature sintering then solidified each ceramic-binder layer into a solid plate. But through a vacuum freeze-drying procedure, the restoration firm was very successful in salvaging the documents, he said. |
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