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1·The result of experiment shows that polyethylene cerate and bentonite pregel play important roles for flash primer.

实验结果说明，聚乙烯蜡膏，膨通预凝胶在闪光漆中有着重要作用。

2·This paper analyses the cause of reform of cerate pump and its operation condition after the reconstruction, and the economy character is analysed.

分析了蜡膏泵改造的原因及改造后的运行情况，并对经济性进行了计算分析。