The reliability of hydraulic system and the service life of hydraulic components depend closely to the contamination resistance and the contaminated condition of the hydraulic oil in the system.

液压系统的可靠性和液压元件的使用寿命，在很大程度上取决于液压元件的耐污染能力和系统油液的污染状况。

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Optimum control of oil fluid contamination in hydraulic system is provided to theoretical basis for improving functional reliability of the system and increasing service life of hydraulic components.

对液压系统的油液污染实施控制，对提高系统工作的可靠性，延长液压元件的使用寿命提供了理论依据．。

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Actual work situation and oil sample inspection proofed that the oil contamination of hydraulic system is effectively controlled and the work reliability and life of the bench are further increased.

工况运行及油样检查结果表明，液压系统的油液污染得到了有效控制，试验台工作可靠性及使用寿命也有了进一步提高。

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