在塞体中的隔膜破裂，以便使水泥浆能在底塞到达止塞箍以后通过。
A diaphragm in the plug body ruptures to allow the cement slurry to pass through after the plug reaches the landing collar.
采用等离子体对聚烯烃合成纤维纸改性后，进行丙烯酸接枝，使之适用于电池隔膜。
The paper described modification of Polyolefine paper with acrylic acid induced by plasma. Grafted Polyolefine paper can be used as battery separator.
介绍了隔膜式浆体泵的工业试验情况。并对生产现场隔膜式浆体泵系统效率测定，提供了一种可行的方法。
The industrial test of diaphragm pulp pump is described and a practicable method for the on site determination of the efficiency of diaphragm pulp pump system is provided.
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