... 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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介绍了国内苯酐精制新工艺和高效规整填料塔技术。
The new process of domestic pa refining and the technique of high efficiency regular packing tower are introduced.
采用高效导向筛板与填料对乙酸乙烯-乙酸甲酯精馏塔进行了技改设计。
The high efficient flow guided sieve tray and packing are adopted in the innovation of vinyl acetate Methanol methyl acetate distillation column.
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