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针对几年来进行的社会实践、科研工作中处理的液压系统与元件系统的故障，分析一下出现故障的原因及处理方法，期望对液压元件及系统的教学和对液压系统故障的分析有所启示。1＄压元件选择不合理在大庆金属结构件二厂，抚顺某液压件厂生产和造价高达140万人民币的油罐封头用旋
In view of the social practice that has been carried out for several years and the faults of the hydraulic system and the component system which are dealt with in the scientific research work, the cause of the failure and its treatment are analyzed. The teaching of the hydraulic components and systems and the analysis of the hydraulic system failure are expected to be enlightened. 1 $ pressure components unreasonable choice In Daqing metal structure of the second plant, a hydraulic Fushun plant production and cost of up to 1.4 million yuan with the tank head spin