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回转机构是液压挖掘机的重要机构之一，正确地选择回转机构诸参数，对提高生产率和功能利用率，改善司机的劳动条件，减少工作装置的冲击等具有十分重要的意义。
The slewing mechanism is one of the important mechanisms of the hydraulic excavator. Correctly selecting the parameters of the slewing mechanism is of great importance to improving productivity and function utilization, improving the driver’s working conditions, and reducing the impact of the working device.