手套操作.用完盖好,避免潮气.1大筒盐从试剂公司买来,估计有20多年了,高纯度里面不能加防结块剂.
手套操作.用完盖好,避免潮气.1大筒盐从试剂公司买来,估计有20多年了,高纯度里面不能加防结块剂.
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