Described are the main contents of the improvement design of the KM70 coal hopper car to a-dapt to the operation of car dumpers, the static stress test result for the prototype as well as the testing matched with dumpers.%介绍了KM70型煤炭漏斗车适应翻车机作业改进设计的主要内容、样车静强度试验结果以及与翻车机匹配性能试验情况.
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