e test machine e试验机
The paper mainly adopt the method of hertz simulation, and m ak e the test about wheel and rail wear on JD-1 simulative test machine.
通过采用赫兹试验模拟的方法，在JD - 1轮轨模拟试验机上进行了车轮轮对与钢轨磨损的试验研究。
The paper makes an analysis and study on the cracks found with the bottom case of ZD6-E electric point machine in the vibration test and gives suggestion on the improvement.
本文对ZD6电动转辙机在振动试验中出现的底壳多处断裂进行了分析和研究，并提出了改进措施。
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