实验还大量制备了这两种质粒或载体dna，并用聚乙二醇沉淀法进行了纯化。

These plasmids or vectors DNA were also prepared on a large scale and purified by precipitation with polyethylene glycol (PEG).

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用聚乙二醇沉淀物组分分析法测定35例重症肌无力和19例多发性硬化患者血清循环免疫复合物(CIC)。

Circulating immune complexes (CIC) in serum were determined in 35 cases of myasthenia gravis and in 19 cases of multiple sclerosis respectively.

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聚乙二醇6000（PEG）是一种水溶性非离子聚合物，可使蛋白质发生沉淀作用，并且其对被沉淀的蛋白质有较好的选择性；

Polyethylene glycol 6000(PEG) is a kind of water soluble and non-ionic polymer. lt can make protein to precipitate and has a better alternative to precipitation of protein.

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