简述了节能两级干燥工艺流程利用余热的基本原理。
The principle of waste heat utilization to save energy in the two-stage drying pro-cess is introduced.
分析了传统聚乙烯醇干燥工艺存在的问题，介绍了聚乙烯醇桨叶两级干燥工艺和应用情况。
The existing problems of traditional PVA drying were analyzed, the paddle two-grade drying process for PVA and its applications were presented.
分析了传统聚乙烯醇干燥工艺存在的问题，介绍了聚乙烯醇桨叶两级干燥工艺和应用情况。
The existing problems of traditional PVA drying were analyzed, the paddle two-grade drying process for PVA and its applications were presented.
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