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立生并保持压力是液压系统正常工作的基本条件。液压油不同于其它润滑油，它是在较高压力下工作的油液，担负着传递能量的任务。所以，液压系统的可靠性和各元件寿命直接受到液压油污染状况的影响。液压油在使用过程中由于受到机械。物理和化学的作用，其性能逐渐劣化。当油液
Earning and keeping pressure is the basic condition for the normal operation of the hydraulic system. Unlike other lubricants, hydraulic fluid is a fluid that operates at higher pressures and carries the task of delivering energy. Therefore, the reliability of the hydraulic system and the life of the components directly affected by the situation of hydraulic oil pollution. Hydraulic oil in use due to machinery. Physical and chemical effects, its performance gradually deteriorated. When the oil