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本文通过实验，对参类药物采用白糖埋贮１８个月和２４个月后观察，均无变异现象。认为有推广应用价值，特予介绍。
This article through the experiment, the use of white sugar for paraffin-embedded drugs 18 months and 24 months after observation, there is no variation. We believe that there is promotion and application value and I will introduce it.