It is considered that the results are important base to further study and predicate the air exhausted time for vacuum drying of long-distance pipeline.
研究结果对进一步进行长输管道真空干燥抽气时间的预测研究提供了重要的依据。
The method of pipeline drying includes desiccant drying, dry air drying, vacuum drying and etc, among of which vacuum drying is the most difficult in technique.
管道干燥的方法有干燥剂法、干空气干燥法、真空干燥法等。 其中真空干燥法的技术难度最高。
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