如果比标准空压机油中气泡上升速度快，说明这种油的粘度偏低。
If air pressure than the standard oil bubble rising fast, explain this oil viscosity is low.
超轻防震与亚欧信托基金的粘度等级比低EP90齿轮油。
Supe rL ight ShockProof An EP90 gear oil with the viscosity rating lower than A TF.
然而，在水压轴向柱塞泵的研究中，由于水的粘度比油的粘度小得多，因此，惯性项就起着较大的作用。
However, in research of water hydraulic axial piston pump, inertia items should play an important role because the viscosity of water is much less than that of oil.
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