This article, in conjunction with the sand conveying system of the Suning Locomotive and Rolling Stock Company makes an introduction to the design characteristics of the pneumatic sand conveyance.
此文结合肃宁机车车辆公司输砂系统，介绍气力输砂设计特点。
It is very important to prevent fatigue failure, optimize wheel design and secure the safety of rolling stock.
这对预防车轮疲劳失效、优化车轮设计，保障行车安全，具有重要意义。
The feasibility of applying reliability design to rolling stock parts is revealed by examples.
通过实例计算，证明铁道车辆应用可靠性设计的可行性。
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