关键词：聚乙烯醇、醋酸乙烯酯、聚醋酸乙烯酯、精馏工序，精馏塔的翻译：Keywords: polyvinyl alcohol, polyvinyl acetate, polyvinyl acetate ester, distillation process, distillation columns 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Keywords: polyvinyl alcohol, vinyl acetate, polyvinyl acetate, distillation process, distillation

Keywords: polyvinyl alcohol, polyvinyl acetate, polyvinyl acetate ester, distillation process, distillation columns

Key word: Polyvinyl alcohol, vinyl acetate, polyvinyl acetate, selective evaporation working procedure, rectifying tower

Key words: polyethylene glycol, vinyl acetate, vinyl acetate, refining operations, refining the

Keywords: polyvinyl alcohol, polyvinyl acetate, polyvinyl acetate ester, distillation process, distillation columns