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本文设计了工程机械液压元件（齿轮泵、多路换向阀、全液压转向器和液压缸）综合试验台，为保证工程机械生产厂整机质量提供了必要手段。
In this paper, a comprehensive test bench for hydraulic components of construction machinery (gear pump, multi-way valve, full hydraulic steering gear and hydraulic cylinder) is designed, which provides the necessary measures to ensure the quality of complete machine in construction machinery factory.