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   <dim:field mdschema="dc" element="description" lang="en_US">Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1990.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Includes bibliographical references (leaves 182-195).</dim:field>
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   	&lt;Title>The diffusion mechanism of hydrocarbons in zeolites&lt;/Title>
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