• 研究了镇肾平甲基苯并蒽诱导叙利亚仓鼠口腔癌变预防作用

    The preventive effects of zhenshenping on dimethyl benzanthracene induced oral carcinogenesis in syrian golden hamster were studied.

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  • 目的:研究增生平甲基苯并蒽(DMBA诱发金黄地鼠口腔癌预防作用

    Objecti The preventive effects of zhenshenping on dimethyl benzanthracene(DMBA)induced oral carcinogenesis in syrian golden hamster were studied.

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  • 采用一氧化碳原料无水三氯化铝为催化剂,3,5-二甲基苯甲醛羰基化合成反应进行了研究。

    A new method related to the carbonylating synthesis of 3,5-dimethylbenzaldehyde was studied using o-xylene and CO as the raw materials and anhydrous AlCl3 as the catalyst.

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  • 与聚二甲基聚合物相比引入乙酰基后聚合物溶解性介电常数损耗因子有所提高

    The solubility, dielectric constant, and dissipation factor of the polymer were improved alter acetyl substitution of poly (p-xylylene).

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  • 甲醛水溶液反应合成得到了高纯度3,3 -二甲基-4,4 -氨基甲烷(MDT),并其性能进行了表征。

    The polyimide monomer of 3,3 -dimethyl-4,4 -diaminodiphenylmethane(MDT)was synthesized through the reaction between O-methyl aniline and aqueous formaldehyde solution.

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  • 甲醛水溶液反应合成得到了高纯度3,3 -二甲基-4,4 -氨基甲烷(MDT),并其性能进行了表征。

    The polyimide monomer of 3,3 -dimethyl-4,4 -diaminodiphenylmethane(MDT)was synthesized through the reaction between O-methyl aniline and aqueous formaldehyde solution.

    youdao

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