• This standard solution was accurately prepared in super-clean laboratory with dimethyl o-phthalate and sub-packed in 5ml ampoules.

    标准溶液邻苯二甲酸二甲酯实验室准确配制分装于5毫升安瓿中。

    youdao

  • This standard solution was accurately prepared in super-clean laboratory with dimethyl o-phthalate and sub-packed in 5ml ampoules.

    标准溶液邻苯二甲酸二甲酯实验室准确配制分装于5毫升安瓿中。

    youdao

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