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This paper compares the results Of calculat-ing pore structure and graphing differential and integralpore size distribution by hand and Computer,and presents thatlagrangian interpolation uesd by calculating pore structure issuitable and reliable.  相似文献   
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In this paper we computed the data of porestructure with Lagrange interpolation method.analyzed theconvergence of the method and deduced the corresponding errorestimation formula.  相似文献   
3.
4-hydroxybenzoic acid was synthesized by one pot method using polymer-bonded β-amino prop ionic acid-2-β-cyclodextrin as a catalyst.by which the selectivity for 4-hydroxybenzoic acid is 87%. A possible carboxylation mechanism in the presence of the title catalyst is discussed. Also.the recovery and reusage of the catalyst is studied.  相似文献   
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