• 发明涉及二氟一氯乙烷制备方法

    The invention relates to a preparation method of difluoromono-chloroethane;

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  • 乙烷二氟甲烷的组合物,作为加热冷却液体时具有非凡的效率容量

    Certain compositions of pentafluoroethane and chlorodifluoromethane have unusual efficiency and capacity as fluids for heating and cooling.

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  • 抛射剂为三氯甲烷、二氟甲烷、氯四乙烷、氮气氧化碳中的至少种。

    The propellent is at least one of trichlorofluoromethane, dichlorodifluoromethane, dichlorotetrafluoroethane, nitrogen and carbon dioxide.

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  • 抛射剂为三氯甲烷、二氟甲烷、氯四乙烷、氮气氧化碳中的至少种。

    The propellent is at least one of trichlorofluoromethane, dichlorodifluoromethane, dichlorotetrafluoroethane, nitrogen and carbon dioxide.

    youdao

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