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全液压汽车起重机的特点,液压起重机主要回路,液压系统常见故障原因,系统压力不足和液压自行缸回缩故障的诊断及维修方法。
Full hydraulic truck crane characteristics, the main hydraulic cranes, hydraulic system common causes of failure, the system pressure shortage and the hydraulic self-cylinder retraction fault diagnosis and maintenance methods.