The structure of graphite Raschig ring was analyzed by SEM.
结合SEM对拉西环进行了结构分析。
Compared with ceramic Raschig rings, the production rate of the new packing increases the production rate significantly with a slightly higher separation ef...
生产实践证明，这种金属开窗环填料与原用同样外形尺寸的拉西环填科相比，不仅生产量有较大辐度的提高而且分离效率也略有增长。
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