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日本小松PC系列和日立EX系列液压挖掘机均采用微处理机控制。这是一种集成度较高的机电一体化产品。通过微机控制使该机工作时效率较高，在高压和低压卸荷时又能减少能量损失，达到了节能的目的。一、微机控制的液压系统小松PC系列和日立EX系列液压挖掘机的微机控制系统一般由
Japan’s Komatsu PC series and Hitachi EX series hydraulic excavators are microprocessor-controlled. This is a highly integrated mechatronic product. By computer control to make the machine work more efficient at high pressure and low pressure unloading can reduce energy loss, to achieve energy-saving purposes. First, the computer-controlled hydraulic system Komatsu PC series and Hitachi EX series hydraulic excavator computer control system generally