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。
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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