A: I work at a train station, and every month they test their workers.
答：我在火车站工作，工人每个月做一次检查。
It is completed that is test of single vehicle and immovable train.
完成了该制动机的单车试验与牵引列车定置试验。
The test data visualization is very useful to study the train aerodynamics.
列车气动试验数据可视化对列车空气动力学研究很重要。
The test data visualization is very useful to study the train aerodynamics.
列车气动试验数据可视化对列车空气动力学研究很重要。
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