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档案去酸技术
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档案去酸技术
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archival deacidification technology
档案去酸技术
通过一定的技术方法,去除纸张中的氢离子,使纸张呈弱碱性或中性,降低纸张老化和受损的可能性,达到延长档案寿命、保护档案的目的。
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sol-gel process to produce powder
sol-gel route
sol gel transformation
sol-gel transformation
sol-gel transition
solicit articles or essays
soliciting subscriptions down the line from the top
soliciting subscriptions in the system
soliciting subscriptions on exclusive sale basis
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solid
solid acid
solid acid alkylation
solid-acid catalyst
solid acids
solid acids and acid catalyzed reactions
solid adsorbent for hydrogen sulfide
solid adsorbent for nitrogen oxide
solid adsorbent for sulfur dioxide
solid alcohol
solid analytic geometry
solid angle
solid annulus
solid anode tube
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