题目内容

The motion speed of piston in actuator only depends on the_____________.

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From an operational standpoint, any hydraulic system can be divided into _______logical segments.

The gauge pressure of a hydraulic accumulator is 0.3MPa, so the absolute pressure of it is ______ MPa (The Atmospheric pressure is 0.1MPa)

The two main parameters in the hydraulic system are_ and .

In a hydraulic system, the viscosity of hydraulic oil decreases with the ___________ of temperature.