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The ageing depeion of nitrate-poetherthased Polyurethans were studied by means of swellingtheory of polymere and chemical reaction kinetics.

运用的溶胀理论和化学反应动力学,研究了硝酸酯基氨酯的老化降解过程。

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Two different kinds of palladium complexes of nitrogen containing polymere havebeen prepared and their catalytic actions for p -nitro -methyl benzfene have been invertigeted.

制备了两种不同的含氮高-,并研究了它们对对硝基甲苯的催化活性。

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metalled, metallergy, metallibure, metallic, metallic bond, metallic element, metallicity, metallide, metalliding, metalliferous,

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3G, 401(K), a,

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