因此，在进行高分子化学实验之前，有必要对所用试剂进行纯化。
Therefore, when polymer chemistry experiments, it is necessary for the reagents used for purification.
在高分子化学实验中，单体的精制主要是对烯类单体而言，也包括某些其它类型单体。
In polymer chemistry experiments, the monomer is refined mainly in terms of vinyl monomers, but also some other types of monomers.
在高分子化学实验中，单体的精制主要是对烯类单体而言，也包括某些其它类型单体。
In polymer chemistry experiments, the monomer is refined mainly in terms of vinyl monomers, but also some other types of monomers.
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