聚醋酸乙烯和聚乙烯醇是经过无数次筛选的理想修补材料。

The polyvinyl acetate and polyvinyl alcohol used are ideal restoring materials obtained by numberless screening.

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研究了在聚乙烯醇缩甲醛溶液中制备聚醋酸乙烯酯乳胶漆的方法。

The production procedure of polyvinyl acetate latex paint in polyvinyl formal solution was studied.

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聚乙烯醇（PVA）是由醋酸乙烯经皂化而成的高分子化合物，是目前发现的唯一具有水溶性的高聚物，主要用于生产维纶纤维。

Polyvinl alcohol(PVA) is only one water-soluble high polymer we know at present , it is the saponification substance of vinyl acetate, mainly used in produce fibre.

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