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?8494.A loud hammering noise in a hydraulic system having an accumulator usually indicates

发布于 2021-02-18 22:10:58

【单选题】
A ?air in the fluid.
B ?too much preload in the accumulator.
C ?too low or no preload in the accumulator.

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91510681214285398E 2023-02-18

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Royston Yuen

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