In testing the dynamics performance of locomotives and rolling stock on the roller testing rig, the difference between the track wheel and the actual track may cause deviation of the test results.

滚动振动试验台在测试机车车辆动力学性能时，轨道轮与实际线路的差异会造成测试结果出现偏差。

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The homogenization of the rolling stock on the one hand can improve performance, but also can improve the elongation of aluminum foil.

进行均匀化退火一方面可以改善坯料的压延性能，又可以提高铝箔的伸长率。

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Mr Jones also answered questions on child poverty, rolling stock and the performance of the ambulance service in south west Wales.

BBC: First minister's questions