使用减荷器的话，你就要考虑使用目的、操作条件和配件。
In choosing an unloader you must consider the Intended purpose, operating conditions, and additional accessories.
正确的减压器设置允许少量的连续旁路（约总流量的5%）来减少减荷器压力以及补偿喷嘴磨损。
Proper unloader setting allows a small amount of continuous bypass (approximately 5% of total flow) to minimize the pressure spike and compensate for nozzle wear.
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