... 波纹填料塔 mellapak column 填料塔计算 packed column calculator 高效填料塔 high efficiency packing tower ...
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high efficiency regular packing tower 高效规整填料塔
high efficiency structured packing tower 高效规整填料塔
The new process of domestic pa refining and the technique of high efficiency regular packing tower are introduced.
介绍了国内苯酐精制新工艺和高效规整填料塔技术。
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