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开滦矿务局范各庄煤矿有２台菲斯特动态电子轨道衡，是８０年代初随选煤厂设备从德国引进的。在使用过程中，该衡逐渐暴露出一些问题，特别是进入９０年代后，有时甚至难以通过国家的强制性年度检测，制约了煤矿的生产。其存在的主要问题是：①设计本身有缺陷。其秤台为双台面?
Fangezhuang Coal Mine Kailuan Mining has 2 sets of Pfister dynamic electronic track scale, is the early 80s with the coal preparation plant imported from Germany. In the process of using, the balance gradually exposed some problems. Especially after the 1990s, it is sometimes difficult to pass the mandatory annual inspection of the state and restrict the production of coal mines. Its main problems are: ① design itself is flawed. The scale platform for the double table?