液压系统选用插装阀集成控制系统，插装阀集成控制系统具有密封性好，通流能力大，压力损失小等特点。
Hydraulic systems use cartridge valve integrated control system, integrated cartridge valve control system has good sealing, flow capacity, small pressure loss characteristics etc.
同时由于滑阀流动阻力大，通流能力小，不能满足高速或大型液压设备对流量的要求。
Because of the high flow resistance and the poor flowing ability, the spool valves can't meet the requirements for high velocity or huge hydraulic equipment.
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