... mechanical refrigerator freight car 机冷货物车 operation in freight car 车内作业 passenger and freight car bogie 客货车转向架 ...
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The causes to separation of freight car couplers in operation are analysed, and relevant preventative measures are put forward.
对运行中货车车钩分离的原因进行了分析，并提出了相应的防范措施。
In view of the problems existing in operation of the cleaners for freight car bogies, the technical improvement scheme is put forward.
针对现有货车转向架清洗机使用中存在的问题，提出了技术改进方案。
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